College Board
AP Statistics
Advanced Placement Statistics Exam
The end-of-course exam for the College Board's AP Statistics course, equivalent to a one-semester introductory college statistics class. A score of 3 or higher commonly earns college credit and is a strong foundation for data-oriented majors.
Full program: 9 decks, 683 cards.
What's on the exam
AP Statistics Course and Exam Description (effective Fall 2026, revised five-unit framework)
Unit 1: Exploring One-Variable Data and Collecting Data
20–30%Formulating investigative questions · Categorical vs. quantitative variables · Graphical displays and summary statistics · The normal distribution · Sampling methods and bias · Experimental design and scope of inference
Unit 2: Probability, Random Variables, and Probability Distributions
15–25%Simulation and probability rules · Conditional probability and independence · Discrete random variables · Parameters of random variables · Binomial distribution
Unit 3: Inference for Categorical Data: Proportions
15–25%Estimators and sampling distributions · Confidence intervals for proportions · Significance tests and p-values · Type I and Type II errors · Chi-square tests for homogeneity and independence
Unit 4: Inference for Quantitative Data: Means
10–20%Sampling distributions of means · t-distributions · Confidence intervals for means · Significance tests for means · Two-sample and paired procedures
Unit 5: Regression Analysis
10–20%Scatterplots and association · Correlation · Least-squares regression · Residuals and residual plots
Frequently asked questions
How much does the AP Statistics cost?
The AP Statistics costs $99. US price per exam; higher internationally; schools may add fees and fee reductions are available.
How long is the AP Statistics and how many questions does it have?
42 multiple-choice questions (90 min) and 4 free-response questions (90 min) — 3 hours.
What do you need to pass the AP Statistics?
Scored 1–5; most colleges grant credit for 3, 4, or 5 (policies vary).
Can you retake the AP Statistics?
Once per year, at the May administration.
What is the best way to study for the AP Statistics?
Start from the official outline and your primary study materials: the exam is weighted by domain (Unit 1: Exploring One-Variable Data and Collecting Data 20–30%, Unit 2: Probability, Random Variables, and Probability Distributions 15–25%, Unit 3: Inference for Categorical Data: Proportions 15–25%, Unit 4: Inference for Quantitative Data: Means 10–20%, Unit 5: Regression Analysis 10–20%). Once you've learned the material, spaced-repetition flashcards organized by those domains are an efficient way to retain it and refresh it before test day.
Ready to prepare?
Our AP Statistics program is organized by this outline's domains and scheduled by spaced repetition, with a path from first card to test day.
Flashcards are a memory tool. Learn the material first, then use NoReread to retain it and refresh what you already know. It doesn't replace studying the subject.