ST
Math & CS
AP Statistics
46 questions · 180 minutes on the real exam
Practice
Learn
Exam structure
Total time: 3 hours
MCQSection I: Multiple Choice
40 Qs·90 min·50%
5 answer choices. Calculator allowed throughout.
FRQSection II: Free Response
6 Qs·90 min·50%
5 short FRQ + 1 Investigative Task (long FRQ). Investigative Task is worth more.
Scoring
Scored 1–5. MCQ = 50%, FRQ = 50%.
Tips
- ~135 seconds per MCQ
- Calculator (TI-83/84) required
- FRQ: always name the test, state hypotheses, check conditions, conclude in context
What's on this exam
Unit 1: Exploring One-Variable Data
19%- Describing Distributions
- Graphical Displays
- Outliers
Unit 2: Exploring Two-Variable Data
6%- Scatterplots and Correlation
- Linear Regression
- Residuals
Unit 3: Collecting Data
14%- Sampling Methods
- Sources of Bias
- Experiments
Unit 4: Probability, Random Variables, Probability Distributions
15%- Probability Rules
- Random Variables
- Binomial Distribution
- Normal Distribution
Unit 5: Sampling Distributions
10%- Sampling Distributions
- Central Limit Theorem
Unit 6: Inference for Categorical Data: Proportions
14%- Confidence Intervals for Proportions
- Significance Tests for Proportions
Unit 7: Inference for Quantitative Data: Means
14%- Confidence Intervals for Means
- Significance Tests for Means
- Paired and Two-Sample Tests
Unit 8: Inference for Categorical Data: Chi-Square
4%- Chi-Square Tests
- Goodness of Fit
Unit 9: Inference for Quantitative Data: Slopes
4%- Significance Test for Slope
- Confidence Interval for Slope