Key takeaway: AP Statistics vocabulary lists 27 terms of the course, such as stratified random sampling, confounding variable, central limit theorem, p-value and confidence interval.
In AP Statistics, the right word earns the point: a response that says “correlation” when it means “association”, or “proves” when it means “gives convincing evidence”, loses credit. This AP Statistics vocabulary page defines the terms of the course so that every answer uses them correctly.
The words follow the units of the course description: exploring data, collecting data, probability, sampling distributions and inference. Each one has a figure and an example written in exam style.
27 terms on this page, each with a definition, a figure and a worked example.
AP Statistics Vocabulary: the full list
Statistics and Data
- Categorical and Quantitative Variables AP Statistics Unit 1
- Central Limit Theorem AP Statistics Unit 2
- Chi-Square Test AP Statistics Unit 3
- Coefficient of Determination (r²) AP Statistics Unit 5
- Confidence Interval AP Statistics Unit 3
- Confounding Variable AP Statistics Unit 1
- Degrees of Freedom AP Statistics Unit 4
- Experiment vs. Observational Study AP Statistics Unit 1
- Five-Number Summary AP Statistics Unit 1
- Hypothesis Testing AP Statistics Unit 3
- Least-Squares Regression Line AP Statistics Unit 5
- Null and Alternative Hypotheses AP Statistics Unit 3
- P-Value AP Statistics Unit 3
- Percentile AP Statistics Unit 1
- Sampling Bias AP Statistics Unit 1
- Sampling Distribution AP Statistics Unit 2
- Significance Level (Alpha) AP Statistics Unit 3
- Simple Random Sample AP Statistics Unit 1
- Skewed Distribution AP Statistics Unit 1
- Standard Error AP Statistics Unit 2
- Stratified Random Sampling AP Statistics Unit 1
- t-Distribution AP Statistics Unit 4
- t-Test AP Statistics Unit 4
- Type I and Type II Errors AP Statistics Unit 3
Probability and Counting
- Binomial Distribution AP Statistics Unit 2
- Law of Large Numbers AP Statistics Unit 2
- Random Variable AP Statistics Unit 2