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About the AP Statistics diagnostic

Learn data analysis, probability, sampling, inference, and statistical reasoning for the AP Statistics exam.

This diagnostic is a starting point rather than a practice exam: it samples the whole syllabus so you can see which units you already know and which ones need the work, before you spend study time guessing.

Units on this diagnostic

Questions are drawn from all 9 units of AP Statistics, covering 41 topics in total.

How to use your results

The score report is broken down by unit. Start with the unit you scored lowest on rather than the one you enjoy most, work through its lessons and exit quiz, then come back and take the diagnostic again to confirm the gain is real.

Common questions

What does the AP Statistics diagnostic cover?
It draws on all 9 units of AP Statistics: Unit 1: Exploring One-Variable Data, Unit 2: Exploring Two-Variable Data, Unit 3: Collecting Data, Unit 4: Probability, Random Variables, and Probability Distributions, Unit 5: Sampling Distributions, Unit 6: Inference for Categorical Data — Proportions, Unit 7: Inference for Quantitative Data — Means, Unit 8: Inference for Categorical Data — Chi-Square, Unit 9: Inference for Quantitative Data — Slopes.
Is the AP Statistics diagnostic free?
Yes. The diagnostic and your results are free to use.
What happens after I finish?
Your results break the score down by unit, so you can see which ones cost you the most points, and you can start a study plan built from that result.
Can I take it more than once?
Yes. Each attempt draws from a different form, so a retake is new questions rather than the ones you just saw.

More AP Statistics practice