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 original, exam-style 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 an exam-style 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.