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Branches
Statistics and probability
Data, graphs, chance and inference · 57 lessons
Mix the whole branch
Questions from every lesson, mixed
Topics
One-variable data
Distributions, center, spread, outliers, the normal model · 9 lessons
Two-variable data
Two-way tables, correlation, regression lines · 7 lessons
Collecting data
Samples, bias, studies and experiments · 6 lessons
Probability
Chance, conditional probability, counting · 7 lessons
Random variables
Expected value, binomial and geometric distributions · 6 lessons
Sampling distributions
Variability of samples, the central limit theorem · 6 lessons
Confidence intervals
Margins of error, proportions and means · 6 lessons
Significance tests
Hypotheses, P-values, errors and power · 6 lessons
Inference for regression
Tests and intervals for the slope · 4 lessons