Sampling, inference, regression, and the dreaded chi-squared.
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Real Test
Full-length test
40 questions, 90 min countdown. Same length and pacing as the real exam.
Best on desktop - a computer is recommended for full-length tests.
Warmup
Quick practice
Random questions across all topics. Pick a difficulty to dial up the challenge.
Targeted
Practice by topic
Drill one skill until it stops scaring you.
Smart Mix
AI smart quiz
Pulls real questions from the AP Statistics bank by topic + difficulty, and tops up with fresh AI when the bank runs short.
AI · Fresh
Endless AI questions
Brand-new questions written by AI every time — no repeats. Great when you've drilled the bank dry.
Stuck? Ask the AI tutor.
Adaptive help that explains your mistakes step-by-step.
Practice AP Statistics free response
5 rubric-graded prompts. AI scores against the official rubric.
Exam blueprint
40 MCQ + 6 FRQ. Major format changes coming for 2027.
Unit 1Exploring One-Variable Data15–23%
Unit 2Exploring Two-Variable Data5–7%
Unit 3Collecting Data12–15%
Unit 4Probability, Random Variables, and Probability Distributions10–20%
Unit 5Sampling Distributions7–12%
Unit 6Inference for Categorical Data: Proportions12–15%
Unit 7Inference for Quantitative Data: Means10–18%
Unit 8Inference for Categorical Data: Chi-Square2–5%
Unit 9Inference for Quantitative Data: Slopes2–5%
Source: College Board Course & Exam Descriptions, 2025–26.