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AP®StatisticsCollege BoardStudy Guides

College Board AP® Statistics Study Guides

Achieve exam success with our College Board AP Statistics study guides—expertly designed to match the official curriculum and support your preparation. Covering key topics like data analysis, probability, sampling, and inference, these clear, concise resources help you master essential skills with confidence. With downloadable PDFs, step-by-step explanations, and examiner insights, Save My Exams equips you to study smarter, build understanding, and feel fully prepared for your AP Statistics exam.

Unit 2: Exploring Two-Variable Data

Two-Way Tables & Relative Frequencies

Bar Graphs & Mosaic Plots

Explanatory & Response Variables

Association & Correlation Coefficients

Interpolation & Extrapolation using Linear Models

The Least-Squares Regression Line

The Coefficient of Determination

Outliers, High-Leverage & Influential Points

Linearization of Bivariate Data

Unit 3: Collecting Data

Introduction to Sampling

Simple Random Sampling (SRS)

Random Sampling Methods

Non-random (Biased) Sampling Methods

Introduction to Experiments

Well-Designed Experiments

Control Groups, Placebos & Blind Experiments

Completely Randomized Design

Randomized Block & Matched Pairs Design

Unit 4: Probability, Random Variables & Probability Distributions

Estimating Probability using Relative Frequency

Probabilities of Single Events

Introduction to Combined Events

Addition Rule & Mutually Exclusive Events

Conditional Probability

Multiplication Rule & Independent Events

Probabilities of Combined Events using Tree Diagrams

Probabilities of Combined Events using the Rules

Probability Distributions for Discrete Random Variables

Cumulative Probability Distributions for Discrete Random Variables

Mean & Standard Deviation of a Discrete Random Variable

Linear Transformations of Random Variables

Linear Combinations of Random Variables

Introduction to Binomial Distributions

Probabilities for Binomial Distributions

Introduction to Geometric Distributions

Probabilities for Geometric Distributions

Unit 5: Sampling Distributions

Introduction to Sampling Distributions

Sampling Distributions for Sample Means

The Central Limit Theorem

Sampling Distributions for Differences in Sample Means

Sampling Distributions for Sample Proportions

Sampling Distributions for Differences in Sample Proportions

Biased & Unbiased Estimators

Units 6-9: Inference

Tails on a Normal Distribution

Introduction to Hypothesis Testing

Introduction to Confidence Intervals

Hypothesis Tests for Population Proportions

Confidence Intervals for Population Proportions

Hypothesis Tests for Differences in Population Proportions

Confidence Intervals for Differences in Population Proportions

The t-distribution

Hypothesis Tests for Population Means

Confidence Intervals for Population Means

Hypothesis Tests for Differences in Population Means

Confidence Intervals for Differences in Population Means

t-scores versus z-scores

Hypothesis Tests for Differences in Matched Pairs

Confidence Intervals for Differences in Matched Pairs

The Chi-Square Distribution

Hypothesis Tests for Goodness of Fit

Tests for Independence

Tests for Homogeneity

Sampling Distributions for Sample Slopes

Hypothesis Tests for Slopes of Regression Lines

Confidence Intervals for Slopes of Regression Lines

Type I & Type II Errors

Probabilities of Errors

Power of a Test

Study tools

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