AP Statistics review

Calculator policy: A graphing calculator with statistics functions is expected throughout.

1. Unit 1

   Exploring One-Variable Data

   Displays, center, spread, outliers and the normal model.

   Unit 1 notes and practice

2. Unit 2

   Exploring Two-Variable Data

   Scatterplots, correlation, least-squares regression and residuals.

   Unit 2 notes and practice

3. Unit 3

   Collecting Data

   Sampling methods, bias and experimental design.

   Unit 3 notes and practice

4. Unit 4

   Probability, Random Variables and Probability Distributions

   Probability rules, random variables, binomial and geometric distributions.

   Unit 4 notes and practice

5. Unit 5

   Sampling Distributions

   Behavior of sample proportions and means; the Central Limit Theorem.

   Unit 5 notes and practice

6. Unit 6

   Inference for Categorical Data: Proportions

   Confidence intervals and significance tests for proportions.

   Unit 6 notes and practice

7. Unit 7

   Inference for Quantitative Data: Means

   t-intervals and t-tests for means and paired data.

   Unit 7 notes and practice

   Estimating Average Sleep (free response)

8. Unit 8

   Inference for Categorical Data: Chi-Square

   Goodness-of-fit, homogeneity and independence tests.

   Unit 8 notes and practice

9. Unit 9

   Inference for Quantitative Data: Slopes

   Intervals and tests for the slope of a regression line.

   Unit 9 notes and practice

Original practice questions in the free-response style. You score them with a point-by-point rubric; AI grading appears only when this site has it configured.

• Descriptive Statistics Study Guide (study guide)
• Statistics Formulas cheat sheet (one-page formulas)
• Descriptive Statistics Quiz (quick quiz)
• Statistics practice problems (with worked solutions)