If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains ***.kastatic.org** and ***.kasandbox.org** are unblocked.

Main content

Not feeling ready for this? Check out Get ready for AP® Statistics.

Representing a quantitative variable with dot plots: Exploring one-variable quantitative data: Displaying and describingRepresenting a quantitative variable with histograms and stem plots: Exploring one-variable quantitative data: Displaying and describingDescribing the distribution of a quantitative variable: Exploring one-variable quantitative data: Displaying and describing

Measuring center in quantitative data: Exploring one-variable quantitative data: Summary statisticsMore on mean and median: Exploring one-variable quantitative data: Summary statisticsMeasuring variability in quantitative data: Exploring one-variable quantitative data: Summary statistics

Effects of linear transformations: Exploring one-variable quantitative data: Summary statisticsMore on standard deviation (optional): Exploring one-variable quantitative data: Summary statisticsGraphical representations of summary statistics: Exploring one-variable quantitative data: Summary statistics

Percentiles: Exploring one-variable quantitative data: Percentiles, z-scores, and the normal distributionZ-scores: Exploring one-variable quantitative data: Percentiles, z-scores, and the normal distributionDensity curves: Exploring one-variable quantitative data: Percentiles, z-scores, and the normal distribution

Introduction to random variables and probability distributions: Random variables and probability distributionsMean and standard deviation of random variables: Random variables and probability distributionsTransforming random variables: Random variables and probability distributions

Combining random variables: Random variables and probability distributionsIntroduction to the binomial distribution: Random variables and probability distributionsParameters for a binomial distribution: Random variables and probability distributionsThe geometric distribution: Random variables and probability distributions

Introduction to confidence intervals: Inference for categorical data: ProportionsConfidence intervals for proportions: Inference for categorical data: ProportionsThe idea of significance tests: Inference for categorical data: ProportionsSetting up a test for a population proportion: Inference for categorical data: Proportions

Carrying out a test for a population proportion: Inference for categorical data: ProportionsConcluding a test for a population proportion: Inference for categorical data: ProportionsPotential errors when performing tests: Inference for categorical data: ProportionsConfidence intervals for the difference of two proportions: Inference for categorical data: ProportionsTesting for the difference of two population proportions: Inference for categorical data: Proportions

Test your knowledge of the skills in this course. Have a test coming up? The Course challenge can help you understand what you need to review.

AP® is a registered trademark of the College Board, which has not reviewed this resource.