Statistics & probability

Learn statistics and probability—everything you'd want to know about descriptive and inferential statistics.

Analyzing categorical data
Displaying and comparing quantitative data
Summarizing quantitative data
Modeling data distributions
Exploring bivariate numerical data
Study design
Probability
Counting, permutations, and combinations
Random variables
Sampling distributions
Confidence intervals
Significance tests (hypothesis testing)
Two-sample inference for the difference between groups
Inference for categorical data (chi-square tests)
Advanced regression (inference and transforming)
Analysis of variance (ANOVA)