AP Statistics — Probability, Random Variables, and Probability Distributions

Unit 4 of 9

Probability, Random Variables, and Probability Distributions is the fourth of 9 units in the College Board's current AP StatisticsCourse & Exam Description. It builds on Collecting Data and sets up Sampling Distributions.

Our Probability, Random Variables, and Probability Distributions set has 12 practice questions, each with a written explanation, a one-line key takeaway, and a rationale for every wrong choice — so you learn why the right answer is right and why each distractor is tempting. You can work them as a timed set or read the worked solutions straight through.

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Practice Probability, Random Variables, and Probability Distributions · 12 questions Study the worked solutions

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Full-length practice exam 1

Full-length practice exam 2

Full-length practice exam 3

All AP Statistics units

Unit 1
Exploring One-Variable Data
Unit 2
Exploring Two-Variable Data
Unit 3
Collecting Data
Unit 4 · You are here
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