PurrLearnPurrLearn
Data Analysis Foundations

Core Skills

From randomized controlled experiments and statistical significance to the statistical fallacies even experts fall for: build a solid foundation for making decisions with data.

Unit 1
A/B Testing & Experiment Design
Understand why A/B testing can establish causation, how to design and read its results, and how to dodge the counterintuitive traps around p-values, peeking/early stopping, confidence intervals, and Simpson's paradox.
  1. 1A/B Testing & Experiment Design: Letting Data Beat IntuitionRandomization is the only key that establishes causation — but misread a p-value or a confidence interval and you'll still fool yourself5 Q