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186 questions across 31 papers

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AP Statistics free-response questions, topics and PDF locations
Year / question	Question & skills	Topics	Practice
2026Question 1Short answer	Goat breeds and weights Five-number summaries, boxplots and comparing distributions	Exploring one-variable data	PDF page 3
2026Question 2Short answer	Coffee grounds and roses Experimental units, treatments and random assignment	Sampling & experiments	PDF page 5
2026Question 3Short answer	Team songs and performances Normal probabilities, binomial models and waiting times Older syllabus content Geometric distributions. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Probability & random variables	PDF page 6
2026Question 4Short answer	Fertilizer and orange production Two-sample t-test and an experimental conclusion	Inference for meansSampling & experiments	PDF page 7
2026Question 5Short answer	Athletes, age and sport Mosaic plots, conditional probability and inference conditions	Exploring two-variable dataProbability & random variablesChi-square tests	PDF page 8
2026Question 6Investigative task	Baseball hits and runs Regression predictions, uncertainty and standard errors Older syllabus content Regression inference extension. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Exploring two-variable dataSampling distributionsRegression inference	PDF page 10
2025Question 1Short answer	Car mileage in two countries Comparing boxplots, shape, center and combined data	Exploring one-variable data	PDF page 3
2025Question 2Short answer	Aphids in a cabbage field Sampling bias, cluster sampling and stratification	Sampling & experiments	PDF page 4
2025Question 3Short answer	A restaurant music playlist Independence, binomial probabilities and expected counts	Probability & random variables	PDF page 6
2025Question 4Short answer	Homework app use One-proportion z-test and a conclusion in context	Inference for proportions	PDF page 7
2025Question 5Short answer	Bedrooms in new houses Expected value, hypotheses, Type I error and confidence intervals	Probability & random variablesInference for means	PDF page 8
2025Question 6Investigative task	Reading at different times of day Paired versus independent samples and effect size	Inference for meansSampling & experiments	PDF page 9
2024Question 1Short answer	Interest in online fitness classes Two-proportion z-test with conditions and interpretation	Inference for proportions	PDF page 4
2024Question 2Short answer	Fundraising with recycled bottles Segmented bar charts, mosaic plots and relative frequencies	Exploring two-variable data	PDF page 5
2024Question 3Short answer	Autopilot and car mileage Random assignment, causation and generalization	Sampling & experiments	PDF page 7
2024Question 4Short answer	Red crystals inside geodes Waiting-time probabilities and expected value Older syllabus content Geometric distributions. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Probability & random variables	PDF page 9
2024Question 5Short answer	Baseball cards and age groups Conditional probability and a chi-square test	Probability & random variablesChi-square tests	PDF page 11
2024Question 6Investigative task	Whistle prices at different stores Outliers, Pearson skewness and conditions for a mean interval	Exploring one-variable dataInference for means	PDF page 13
2023Question 1Short answer	Dissolved oxygen in Alaskan streams Histograms, boxplots and distribution comparisons	Exploring one-variable data	PDF page 4
2023Question 2Short answer	Fibers in concrete driveways Experimental design, treatments and random assignment	Sampling & experiments	PDF page 6
2023Question 3Short answer	Cash prizes in bath fizzies Discrete distributions, conditional probability and expected value	Probability & random variables	PDF page 8
2023Question 4Short answer	Omega-3 supplements and irritability Matched-pairs t-test using changes in scores	Inference for means	PDF page 10
2023Question 5Short answer	Chest size and mass of tule elk Regression output, residuals and slope inference Older syllabus content Inference for regression slopes. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Exploring two-variable dataRegression inference	PDF page 12
2023Question 6Investigative task	Coating gold necklaces Normal models, sample means and simulated ranges	Probability & random variablesSampling distributions	PDF page 16
2022Question 1Short answer	Length and mass of bullfrogs Scatterplots, slope, coefficient of determination and residuals	Exploring two-variable data	PDF page 4
2022Question 2Short answer	Acne treatments for identical twins Matched pairs, experimental units and randomization	Sampling & experiments	PDF page 6
2022Question 3Short answer	Filling shampoo bottles Normal probabilities, independent events and process settings	Probability & random variables	PDF page 8
2022Question 4Short answer	Teenagers and streaming services One-proportion confidence interval and evaluating a claim	Inference for proportions	PDF page 10
2022Question 5Short answer	Dark chocolate and blood pressure Comparing medians and a randomization test	Exploring one-variable dataInference for means	PDF page 12
2022Question 6Investigative task	Treatments at allergy clinics Conditional proportions, confounding and Simpson’s paradox	Exploring two-variable dataSampling & experimentsProbability & random variables	PDF page 14
2021Question 1Short answer	Length of hospital stays Five-number summaries, skewness and outlier rules	Exploring one-variable data	PDF page 4
2021Question 2Short answer	Walking and cholesterol Measurement bias, representative samples and causation	Sampling & experiments	PDF page 6
2021Question 3Short answer	Employee gift cards Binomial probabilities and expected counts	Probability & random variables	PDF page 8
2021Question 4Short answer	Coupons for pet supplies One-proportion z-test and decision errors	Inference for proportions	PDF page 10
2021Question 5Short answer	Teenagers and soft drinks Relative frequencies and chi-square hypotheses	Exploring two-variable dataChi-square tests	PDF page 12
2021Question 6Investigative task	Attendance at baseball games Boxplots, time trends and confounding variables	Exploring one-variable dataExploring two-variable dataSampling & experiments	PDF page 14
2019Question 1Short answer	Dormitory room sizes Comparing histograms and boxplots	Exploring one-variable data	PDF page 6
2019Question 2Short answer	Fungus as a tree-insect treatment Controls, treatments and random assignment	Sampling & experiments	PDF page 8
2019Question 3Short answer	Following a medication schedule Conditional probability, independence and binomial models	Probability & random variables	PDF page 9
2019Question 4Short answer	Herbicide-resistant kochia plants Two-proportion z-test for an increase	Inference for proportions	PDF page 10
2019Question 5Short answer	Battery life and warranties Normal quantiles, probability and expected profit	Probability & random variables	PDF page 11
2019Question 6Investigative task	Apartment rents Generalization, medians and bootstrap intervals	Exploring one-variable dataSampling & experimentsSampling distributions	PDF page 12
2018Question 1Short answer	Time in a checkout line Regression intercept, outliers and explained variation	Exploring two-variable data	PDF page 6
2018Question 2Short answer	Recycling at school Response bias and randomized-response surveys	Sampling & experimentsProbability & random variables	PDF page 7
2018Question 3Short answer	Multiple births and left-handedness Conditional probability, total probability and binomial models	Probability & random variables	PDF page 8
2018Question 4Short answer	Recovery after knee surgery Causation and a two-sample t-test	Sampling & experimentsInference for means	PDF page 9
2018Question 5Short answer	Teacher experience Histograms, weighted means and empirical probabilities	Exploring one-variable dataProbability & random variables	PDF page 10
2018Question 6Investigative task	Blood pressure at a corporation Type II error, power and sampling distributions	Inference for meansSampling distributions	PDF page 11
2016Question 1Short answer	Tips at a restaurant Distribution shape, center, variability and unusual values	Exploring one-variable data	PDF page 6
2016Question 2Short answer	Snacks and television advertising Association and interpreting chi-square results	Exploring two-variable dataChi-square tests	PDF page 7
2016Question 3Short answer	Smoking and Alzheimer’s disease Observational studies, variables and confounding	Sampling & experiments	PDF page 8
2016Question 4Short answer	Igniting a model rocket Waiting-time and conditional probabilities Older syllabus content Geometric distributions. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Probability & random variables	PDF page 9
2016Question 5Short answer	The environment and the economy Confidence intervals, conditions and dependent proportions	Inference for proportions	PDF page 10
2016Question 6Investigative task	University semesters and salaries Regression, group comparisons and confounding by major	Exploring one-variable dataExploring two-variable dataSampling & experiments	PDF page 11
2015Question 1Short answer	Salaries at accounting firms Comparing boxplots and choosing appropriate summaries	Exploring one-variable data	PDF page 6
2015Question 2Short answer	A restaurant discount Margin of error and sample size for a proportion	Inference for proportionsSampling distributions	PDF page 7
2015Question 3Short answer	ATM availability Discrete distributions, expected value and conditional expectations	Probability & random variables	PDF page 8
2015Question 4Short answer	Aspirin and cancer Two-proportion z-test	Inference for proportions	PDF page 9
2015Question 5Short answer	Height and arm span Scatterplots, regression and residuals	Exploring two-variable data	PDF page 10
2015Question 6Investigative task	Tortilla production lines Stratified sampling, sample means and variability	Sampling & experimentsSampling distributionsExploring one-variable data	PDF page 12
2014Question 1Short answer	Campus activities Conditional proportions, association and categorical displays	Exploring two-variable dataChi-square tests	PDF page 6
2014Question 2Short answer	Women selected at a sales convention Sampling without replacement and simulation	Probability & random variables	PDF page 8
2014Question 3Short answer	School attendance and funding Normal models, sample means and sampling bias	Probability & random variablesSampling distributionsSampling & experiments	PDF page 8
2014Question 4Short answer	Alumni incomes Nonresponse, random sampling and resistant summaries	Sampling & experimentsExploring one-variable data	PDF page 9
2014Question 5Short answer	Car prices paid by women and men Matched-pairs t-test using price differences	Inference for means	PDF page 10
2014Question 6Investigative task	Fuel consumption in cars Residuals and interpreting models with added predictors	Exploring two-variable data	PDF page 11
2013Question 1Short answer	Lead levels in crows Stemplots, empirical proportions and a normal model	Exploring one-variable dataProbability & random variables	PDF page 6
2013Question 2Short answer	Opinions about campus appearance Convenience samples, simple random samples and stratification	Sampling & experiments	PDF page 7
2013Question 3Short answer	Weights of egg cartons Normal probabilities and sums of independent variables Older syllabus content Combining random variables. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Probability & random variables	PDF page 7
2013Question 4Short answer	Fruit and vegetable consumption Chi-square test of independence	Chi-square tests	PDF page 8
2013Question 5Short answer	Meditation and blood pressure Observational evidence and randomization tests	Sampling & experimentsInference for proportions	PDF page 9
2013Question 6Investigative task	Typhoons by region and year Comparing distributions, time patterns and moving averages	Exploring one-variable dataExploring two-variable data	PDF page 10
2012Question 1Short answer	Price and quality of sewing machines Scatterplots, unusual points and trade-offs	Exploring two-variable data	PDF page 6
2012Question 2Short answer	A charity spinner Discrete probability, expected value and simulation	Probability & random variables	PDF page 7
2012Question 3Short answer	Household sizes in two years Histograms and conditions for a two-mean interval	Exploring one-variable dataInference for means	PDF page 8
2012Question 4Short answer	Television advertisements Two-proportion z-test	Inference for proportions	PDF page 9
2012Question 5Short answer	A fitness test Type II error, p-values and volunteer bias	Inference for proportionsSampling & experiments	PDF page 10
2012Question 6Investigative task	Soft-drink consumption at a school Stratification, standard errors and weighted estimates	Sampling & experimentsSampling distributions	PDF page 11
2011Question 1Short answer	Athletes’ speed and strength Standardized scores and percentile comparisons	Exploring one-variable dataProbability & random variables	PDF page 6
2011Question 2Short answer	Political party and gender Conditional probabilities, independence and segmented bars	Exploring two-variable dataProbability & random variables	PDF page 7
2011Question 3Short answer	Replacing apartment carpets Cluster samples and stratified samples	Sampling & experiments	PDF page 8
2011Question 4Short answer	A cholesterol-lowering drug Two-sample t-test	Inference for means	PDF page 9
2011Question 5Short answer	Wind speed and a windmill Regression, explained variation and slope inference Older syllabus content Inference for regression slopes. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Exploring two-variable dataRegression inference	PDF page 10
2011Question 6Investigative task	Multiple-choice questions in grade 12 A proportion interval and a probability tree	Inference for proportionsProbability & random variables	PDF page 11
2011Form B · Question 1Short answer	Pupil-to-teacher ratios Comparing histograms, means and medians	Exploring one-variable data	PDF page 6
2011Form B · Question 2Short answer	Therapy for fear of heights Randomization, self-selection and causal conclusions	Sampling & experiments	PDF page 7
2011Form B · Question 3Short answer	Airline seat upgrades Geometric and binomial probabilities Older syllabus content Geometric distributions. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Probability & random variables	PDF page 7
2011Form B · Question 4Short answer	Part-time jobs and school achievement Chi-square conditions, hypotheses and decision errors	Chi-square tests	PDF page 8
2011Form B · Question 5Short answer	A flu vaccine A proportion confidence interval and sample size	Inference for proportions	PDF page 9
2011Form B · Question 6Investigative task	Grass buffer strips and nitrogen Regression, extrapolation and uncertainty in predictions	Exploring two-variable dataSampling distributions	PDF page 10
2010Question 1Short answer	Garlic as a bird deterrent Experimental units, treatments and graphical evidence	Sampling & experimentsExploring two-variable data	PDF page 6
2010Question 2Short answer	The length of radio songs The central limit theorem and total listening time	Sampling distributions	PDF page 8
2010Question 3Short answer	Dog ownership Confidence levels, evaluating claims and sample size	Inference for proportions	PDF page 8
2010Question 4Short answer	Owners of a car model Binomial counts and stratified sampling	Probability & random variablesSampling & experiments	PDF page 9
2010Question 5Short answer	Tropical fish from two suppliers Two-sample t-test	Inference for means	PDF page 9
2010Question 6Investigative task	Hurricane damage in different regions Comparing distributions and a simulated rank test	Exploring one-variable dataProbability & random variables	PDF page 10
2010Form B · Question 1Short answer	Aldrin levels in rivers Comparing boxplots and stemplots	Exploring one-variable data	PDF page 6
2010Form B · Question 2Short answer	Opinions about a school cafeteria Simple random and stratified random sampling	Sampling & experiments	PDF page 7
2010Form B · Question 3Short answer	Guessing on multiple-choice questions Binomial models, expected values and probabilities	Probability & random variables	PDF page 7
2010Form B · Question 4Short answer	A music player A proportion confidence interval and the 10% condition	Inference for proportions	PDF page 8
2010Form B · Question 5Short answer	News sources and education Union probabilities, conditional probabilities and independence	Probability & random variables	PDF page 8
2010Form B · Question 6Investigative task	House prices and swimming pools Regression, residuals and comparing group means	Exploring two-variable dataInference for means	PDF page 9
2009Question 1Short answer	Student jobs and gender Segmented displays, association and chi-square inference	Exploring two-variable dataChi-square tests	PDF page 6
2009Question 2Short answer	Tire stopping distances Normal quantiles, binomial models and sample means	Probability & random variablesSampling distributions	PDF page 7
2009Question 3Short answer	Methods for learning frog dissection Randomized blocks, pretests and self-selection	Sampling & experiments	PDF page 7
2009Question 4Short answer	Response times at fire stations Two-sample t confidence interval	Inference for means	PDF page 8
2009Question 5Short answer	CPR after a heart attack Interpreting p-values, causation and decision errors	Inference for proportionsSampling & experiments	PDF page 8
2009Question 6Investigative task	Fuel economy of cars Hypotheses, skewness and simulated sampling distributions	Inference for meansExploring one-variable dataSampling distributions	PDF page 9
2009Form B · Question 1Short answer	Gasoline taxes Boxplots, the interquartile range and shifts in data	Exploring one-variable data	PDF page 6
2009Form B · Question 2Short answer	An HIV screening test Conditional probability and repeated tests	Probability & random variables	PDF page 7
2009Form B · Question 3Short answer	A cardiac pump and CPR Two-proportion z-test and inference conditions	Inference for proportions	PDF page 8
2009Form B · Question 4Short answer	Pesticide, birds and dye Blocked experiments and statistical power	Sampling & experiments	PDF page 8
2009Form B · Question 5Short answer	Filling juice bottles A one-mean test and simulated variability	Inference for meansSampling distributions	PDF page 9
2009Form B · Question 6Investigative task	Comparing treatments for disease Blinding, proportion intervals and relative risk	Sampling & experimentsInference for proportions	PDF page 10
2008Question 1Short answer	Sugar in breakfast cereal Comparing boxplots and standardizing serving sizes	Exploring one-variable data	PDF page 6
2008Question 2Short answer	Year-round schooling Nonresponse bias and follow-up sampling	Sampling & experiments	PDF page 8
2008Question 3Short answer	Scores in an arcade tournament Expected value and the distribution of a difference Older syllabus content Combining random variables. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Probability & random variables	PDF page 9
2008Question 4Short answer	Undersea electronic devices Scatterplots, proportions and standard errors	Exploring two-variable dataSampling distributions	PDF page 10
2008Question 5Short answer	Moose in different habitats A chi-square goodness-of-fit test Older syllabus content Chi-square goodness of fit. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Chi-square tests	PDF page 11
2008Question 6Investigative task	Science scores at a magnet school Comparing improvement and interpreting regression inference Older syllabus content Inference for regression slopes. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Inference for meansExploring two-variable dataRegression inference	PDF page 12
2008Form B · Question 1Short answer	Student-to-teacher ratios at schools Dotplots, comparisons and limits of inference	Exploring one-variable dataInference for means	PDF page 6
2008Form B · Question 2Short answer	Four possible estimators Bias and variability in sampling distributions	Sampling distributions	PDF page 7
2008Form B · Question 3Short answer	Testing new car brakes Margin of error, sample size and study cost	Inference for meansSampling distributions	PDF page 8
2008Form B · Question 4Short answer	Music and blood pressure Designing an experiment and comparing decision errors	Sampling & experimentsInference for means	PDF page 8
2008Form B · Question 5Short answer	Train arrival times Differences of normal variables and waiting probabilities Older syllabus content Combining random variables. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Probability & random variables	PDF page 9
2008Form B · Question 6Investigative task	Foot swelling and Morton’s neuroma Paired inference and graphical diagnostic criteria	Inference for meansExploring one-variable data	PDF page 10
2007Question 1Short answer	A preservative for strawberries Dotplots, standard deviation and a mean-difference interval	Exploring one-variable dataInference for means	PDF page 6
2007Question 2Short answer	Joint-health supplements for dogs Controls, random assignment and blocking	Sampling & experiments	PDF page 7
2007Question 3Short answer	Lengths of fish in a lake Sample means, sample size and the central limit theorem	Sampling distributions	PDF page 7
2007Question 4Short answer	Methods for detecting E. coli Matched-pairs t-test	Inference for means	PDF page 8
2007Question 5Short answer	Phones, passengers and distracted drivers Experiments, hypotheses and conditions for two-proportion inference	Sampling & experimentsInference for proportions	PDF page 9
2007Question 6Investigative task	Judging distances in dim light Comparing regression models and interpreting coefficients Older syllabus content Regression inference extension. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Exploring two-variable dataRegression inference	PDF page 10
2007Form B · Question 1Short answer	Economics test scores Stemplots, distribution features and summaries	Exploring one-variable data	PDF page 6
2007Form B · Question 2Short answer	Dogs and cats in households Binomial probability and the sampling distribution of a mean	Probability & random variablesSampling distributions	PDF page 7
2007Form B · Question 3Short answer	Windows and heat gain Randomized blocks and treatment assignment	Sampling & experiments	PDF page 8
2007Form B · Question 4Short answer	Heights of fathers and daughters Regression, residuals and influential points	Exploring two-variable data	PDF page 9
2007Form B · Question 5Short answer	A new cholesterol medication Two-sample t-test	Inference for means	PDF page 10
2007Form B · Question 6Investigative task	Nature preserves and species loss Log transformations, residuals and a slope interval Older syllabus content Transformations for linearity; inference for regression slopes. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Exploring two-variable dataRegression inference	PDF page 11
2006Question 1Short answer	Two catapults Comparing center, variability and accuracy	Exploring one-variable data	PDF page 6
2006Question 2Short answer	Dish detergent and soapsuds Regression output and standard errors Older syllabus content Inference for regression slopes. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Exploring two-variable dataRegression inference	PDF page 7
2006Question 3Short answer	Measuring underground depth Normal probabilities, independent events and sample means	Probability & random variablesSampling distributions	PDF page 8
2006Question 4Short answer	Emergency-room waiting times Two-sample confidence interval and significance	Inference for means	PDF page 8
2006Question 5Short answer	Nutrients and salinity for shrimps Factorial treatments, randomization and scope of inference	Sampling & experiments	PDF page 9
2006Question 6Investigative task	Thermostat reliability A variance test, simulated sampling distributions and power	Sampling distributions	PDF page 10
2006Form B · Question 1Short answer	Real-estate sales volumes Cumulative relative frequencies and percentiles	Exploring one-variable data	PDF page 6
2006Form B · Question 2Short answer	Factory day and night shifts A two-proportion confidence interval	Inference for proportions	PDF page 7
2006Form B · Question 3Short answer	Distances traveled by golf balls Normal probabilities, independent trials and quantiles	Probability & random variables	PDF page 7
2006Form B · Question 4Short answer	A manual-dexterity training program Matched-pairs t-test	Inference for means	PDF page 8
2006Form B · Question 5Short answer	Tractor hitches and draft Experimental units, replication and confounding	Sampling & experiments	PDF page 9
2006Form B · Question 6Investigative task	Preferences for two juices Exact binomial inference and improving a study	Inference for proportionsProbability & random variablesSampling & experiments	PDF page 10
2005Question 1Short answer	Adolescents’ caloric intake Comparing distributions and improving measurement	Exploring one-variable dataSampling & experiments	PDF page 6
2005Question 2Short answer	Telephone lines in use Expected value, medians and repeated sampling	Probability & random variablesExploring one-variable data	PDF page 7
2005Question 3Short answer	Railcars and fuel consumption Residuals, slope, explained variation and extrapolation	Exploring two-variable data	PDF page 8
2005Question 4Short answer	Vouchers inside cereal boxes One-proportion z-test	Inference for proportions	PDF page 9
2005Question 5Short answer	Household education levels Sample-size planning and stratified sampling	Inference for proportionsSampling & experiments	PDF page 9
2005Question 6Investigative task	Lead on children’s hands Comparing groups and interpreting interactions	Exploring two-variable dataSampling & experiments	PDF page 10
2005Form B · Question 1Short answer	Exam scores in a class Distribution shape, mean, median and midrange	Exploring one-variable data	PDF page 6
2005Form B · Question 2Short answer	Adult and child concert tickets Expected value and standard deviations of totals Older syllabus content Combining random variables. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Probability & random variables	PDF page 6
2005Form B · Question 3Short answer	A new mosquito repellent Completely randomized versus matched-pairs designs	Sampling & experimentsInference for means	PDF page 7
2005Form B · Question 4Short answer	Treating seeds before planting A confidence interval for a difference in means	Inference for means	PDF page 7
2005Form B · Question 5Short answer	Walking speed and pulse rate Regression interpretation and a slope margin of error Older syllabus content Inference for regression slopes. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Exploring two-variable dataRegression inference	PDF page 8
2005Form B · Question 6Investigative task	Milk-container volumes Normal probabilities and simulated sample minima	Probability & random variablesSampling distributions	PDF page 9
2004Question 1Short answer	Gasoline additives Boxplots, changes in mileage and choosing summaries	Exploring one-variable data	PDF page 6
2004Question 2Short answer	Comparing shampoo formulas Blocking by age and gender and assigning treatments	Sampling & experiments	PDF page 7
2004Question 3Short answer	Brontosaur bones Sampling without replacement and limits of generalization	Probability & random variablesSampling & experiments	PDF page 8
2004Question 4Short answer	Antibiotic treatment plans Probability trees and expected treatment cost	Probability & random variables	PDF page 8
2004Question 5Short answer	Satisfaction with hospital services Chi-square association and sample representativeness	Chi-square testsSampling & experiments	PDF page 9
2004Question 6Investigative task	A cholesterol-reducing drug One-sided tests and one-sided confidence intervals	Inference for means	PDF page 10
2004Form B · Question 1Short answer	Impact craters on the Moon Log transformations, residuals and explained variation Older syllabus content Transformations for linearity. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Exploring two-variable data	PDF page 6
2004Form B · Question 2Short answer	Opinions about dining-hall food Convenience sampling and question-wording bias	Sampling & experiments	PDF page 7
2004Form B · Question 3Short answer	Ore loaded into railroad cars Individual normal values and sample means	Probability & random variablesSampling distributions	PDF page 7
2004Form B · Question 4Short answer	Homework in grades 6 and 7 Two-sample intervals and inappropriate matching	Inference for means	PDF page 8
2004Form B · Question 5Short answer	Mandible lengths in dogs and jackals Distribution comparisons and conditions for t procedures	Exploring one-variable dataInference for means	PDF page 9
2004Form B · Question 6Investigative task	Bird populations on two islands Capture–recapture estimates and random-sampling assumptions	Inference for proportionsSampling & experiments	PDF page 10
2003Question 1Short answer	Students’ watches Parallel boxplots and choosing meaningful hypotheses	Exploring one-variable dataInference for means	PDF page 6
2003Question 2Short answer	A class-action lawsuit Parameters, hypotheses and consequences of decision errors	Inference for means	PDF page 7
2003Question 3Short answer	Neck sizes and shirt sizes Normal probabilities and a binomial count	Probability & random variables	PDF page 7
2003Question 4Short answer	Tai chi, yoga and employee stress Random assignment, controls and generalization	Sampling & experiments	PDF page 8
2003Question 5Short answer	Views about a presidential candidate Chi-square test of independence	Chi-square tests	PDF page 9
2003Question 6Investigative task	Choosing an airport shuttle vehicle Expected returns and a confidence interval for demand	Probability & random variablesInference for proportions	PDF page 10
2003Form B · Question 1Short answer	Time spent studying and working Influential observations and changes in a regression line	Exploring two-variable data	PDF page 6
2003Form B · Question 2Short answer	Age and annual income Conditional probability and independence in a two-way table	Probability & random variablesExploring two-variable data	PDF page 8
2003Form B · Question 3Short answer	Vitamin C and flu Experiments and hypotheses for two proportions	Sampling & experimentsInference for proportions	PDF page 9
2003Form B · Question 4Short answer	Coffee filters and cholesterol Randomization, control groups and selecting an inference method	Sampling & experimentsInference for means	PDF page 9
2003Form B · Question 5Short answer	A game-show wheel Independent events, expected winnings and goodness of fit Older syllabus content Chi-square goodness of fit. This material goes beyond the revised 2026–27 course. Other parts may still be useful practice.	Probability & random variablesChi-square tests	PDF page 10
2003Form B · Question 6Investigative task	Illness rates across age groups Confidence-interval precision and allocating a sample	Inference for proportionsSampling distributions	PDF page 11

A question can cover more than one topic. “Older syllabus content” flags known removed topics or related extensions; unflagged investigative tasks can also introduce unfamiliar ideas.

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Full papers & marking materials

Open any PDF below in the reader. Match the year and Form B label before checking your answers.

Coverage notes: 2017 has scoring materials and sample responses, but no standalone question paper in this collection. No 2020 question paper was supplied. The 2012 paper is filed under its actual exam year. For 2026, only the question paper is available here.

20261 question paper · 1 PDF

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20251 question paper · 11 PDFs

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20241 question paper · 11 PDFs

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20231 question paper · 11 PDFs

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20221 question paper · 11 PDFs

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20211 question paper · 11 PDFs

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20191 question paper · 11 PDFs

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20181 question paper · 11 PDFs

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2017Scoring materials only · 10 PDFs

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20161 question paper · 11 PDFs

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20151 question paper · 11 PDFs

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20141 question paper · 11 PDFs

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20131 question paper · 11 PDFs

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20121 question paper · 11 PDFs

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20112 question papers · 18 PDFs

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20102 question papers · 18 PDFs

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20092 question papers · 19 PDFs

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20082 question papers · 19 PDFs

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20072 question papers · 17 PDFs

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20062 question papers · 17 PDFs

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20052 question papers · 7 PDFs

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20042 question papers · 19 PDFs

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20032 question papers · 19 PDFs

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USE THE ARCHIVE WITH CONFIDENCE

Past papers and the 2027 exam

The AP Statistics course and exam change for the 2026–27 school year. The May 2027 exam is fully digital in Bluebook. It has 42 multiple-choice questions in 90 minutes and 4 free-response questions in 90 minutes. Each section contributes 50% of the exam score. Each new free-response question is worth 10 points.

The six-question papers in this archive follow the earlier structure: five shorter free-response questions and an investigative task. Their question numbers describe those historical papers. They do not predict which topic will appear in a particular question on the 2027 exam.

How to use the two exam structures
Feature	Historical archive	May 2027 exam
Free-response questions	6 per paper	4 questions
Free-response time	90 minutes	90 minutes
Course organization	Earlier course and unit structure	5 units in the revised course
Best use of this collection	Original practice questions and marking examples	Select relevant skills and supplement with current-format practice

Removed content includes geometric distributions, combining random variables, chi-square goodness-of-fit tests, transformations used to analyze departures from linearity, and inference for regression slopes. Chi-square tests of independence and homogeneity are different from goodness-of-fit tests; do not discard every chi-square question. Likewise, interpreting a regression line is different from performing inference for its slope.

Investigative tasks may teach a new method within the question. Read the information provided before deciding a question is unsuitable. The topic labels here describe what the question asks, rather than assigning old unit numbers to the revised course. Official course and exam references are collected at the end of this page.

Build a useful practice session

Pick one skill. Start with a topic you have studied, such as confidence intervals or experimental design. Use the skill descriptions to choose a question that addresses a specific gap.
Work from the original paper. Open the question and read every subpart. Tables, diagrams, units and conditions are part of the problem. Continue to the next PDF page when the question carries on.
Write a complete statistical argument. Define the relevant parameter, choose a method, check its conditions, show your calculation and interpret the result in context when the question requires these steps.
Review with the matching guide. Record which part of your reasoning earned credit and which part needs revision. Sample responses help you see how a correct idea can be explained clearly.
Reattempt without the solution. Return to a similar question several days later. A correct answer you can justify independently is more useful than a solution you recognize while reading.

Read the scoring documents carefully

A scoring guideline is a marking reference, not just a list of numerical answers. It can distinguish between a fully correct explanation, a partially correct response and a response that does not demonstrate the required understanding. Follow the guide for the exact year and form; similar-looking contexts can ask different questions.

Sample responses are students’ attempts and can contain errors. Their value comes from comparing the work with the scoring commentary. Chief reader reports describe common difficulties across the exam, while scoring statistics and score distributions summarize performance. Those summaries do not replace the question-specific criteria or predict the score your own work will receive.

For help understanding a method after attempting a question, explore AP tutoring or read our AP exam timetable guide when planning your revision. Keep a short error log: the skill, the mistake, the corrected reasoning and the date you will practise it again.

A LITTLE MORE CLARITY

Questions about the question bank

Understand the archive, choose the right resources and keep your practice focused.

Tell us about your needs

How do I open an individual AP Statistics question?

Choose a question in the finder. The PDF opens in a popup at the question’s starting page and scrolls to its question number. Use the page controls to continue through longer questions. The page number shown is the physical PDF page, including the cover and reference pages.

Are these complete AP Statistics exams?

The question papers in this collection are released free-response sections, not complete exams with multiple-choice sections. There are 31 free-response papers and 186 indexed questions. Marking materials and sample responses are listed separately.

Can I use these past papers for the 2027 exam?

Yes, for topic practice, with care. The exam changes in May 2027 to four free-response questions instead of the six in these historical papers. Some older topics have also been removed. Use the current course description to select relevant practice; an old paper is not a complete 2027-format mock exam.

What does Form B mean?

Form B identifies a separately released version of an exam in the archive. It contains a different set of questions from that year’s regular paper. Match a Form B question with Form B scoring materials from the same year.

Where are the 2017 and 2020 question papers?

The supplied collection has scoring and sample-response documents for 2017 but no standalone 2017 question paper. Its folder labelled 2020 contains a 2012 question paper, which is indexed under its actual exam year. No 2020 question paper is listed here.

Where can I find mark schemes and example answers?

Open the paper library and expand a year. Scoring guidelines explain the marking criteria, while sample responses show students’ work and may include commentary. Try the question before opening either. The supplied 2026 folder contains a question paper only.

ORIGINAL FILES & REFERENCES

External sources

All external links for this resource are kept here. PDFs are read directly from the supplied Google Drive collection. Question descriptions and topic labels are independently written by OnlyPrepy. Archive checked 26 September 2026.

AP® is a trademark registered by the College Board, which is not affiliated with and does not endorse OnlyPrepy. Original examination papers and scoring materials retain their publisher’s copyright notices.

AP Statistics Past Papers

FRQ question finder

Goat breeds and weights

Coffee grounds and roses

Team songs and performances

Fertilizer and orange production

Athletes, age and sport

Baseball hits and runs

Car mileage in two countries

Aphids in a cabbage field

A restaurant music playlist

Homework app use

Bedrooms in new houses

Reading at different times of day

Interest in online fitness classes

Fundraising with recycled bottles

Autopilot and car mileage

Red crystals inside geodes

Baseball cards and age groups

Whistle prices at different stores

Dissolved oxygen in Alaskan streams

Fibers in concrete driveways

Cash prizes in bath fizzies

Omega-3 supplements and irritability

Chest size and mass of tule elk

Coating gold necklaces

Length and mass of bullfrogs

Acne treatments for identical twins

Filling shampoo bottles

Teenagers and streaming services

Dark chocolate and blood pressure

Treatments at allergy clinics

Length of hospital stays

Walking and cholesterol

Employee gift cards

Coupons for pet supplies

Teenagers and soft drinks

Attendance at baseball games

Dormitory room sizes

Fungus as a tree-insect treatment

Following a medication schedule

Herbicide-resistant kochia plants

Battery life and warranties

Apartment rents

Time in a checkout line

Recycling at school

Multiple births and left-handedness

Recovery after knee surgery

Teacher experience

Blood pressure at a corporation

Tips at a restaurant

Snacks and television advertising

Smoking and Alzheimer’s disease

Igniting a model rocket

The environment and the economy

University semesters and salaries

Salaries at accounting firms

A restaurant discount

ATM availability

Aspirin and cancer

Height and arm span

Tortilla production lines

Campus activities

Women selected at a sales convention

School attendance and funding

Alumni incomes

Car prices paid by women and men

Fuel consumption in cars

Lead levels in crows

Opinions about campus appearance

Weights of egg cartons

Fruit and vegetable consumption

Meditation and blood pressure

Typhoons by region and year

Price and quality of sewing machines

A charity spinner

Household sizes in two years

Television advertisements

A fitness test

Soft-drink consumption at a school

AP Statistics
Past Papers