Chi-squared tests: goodness of fit and independence

This module covers the two core chi-squared hypothesis tests for IB Math AI HL: goodness of fit (to test if data matches a claimed distribution) and the test for independence between two categorical variables. You will learn calculation methods and interpretation for exam questions.

📖Study Guide

In-depth bilingual notes with worked past paper examples.

✍️Practice Exam

Timed practice questions with mark scheme grading. Coming soon.

🎴Flashcards

Spaced repetition for key concepts and definitions. Coming soon.

📊Visualizer Coming Soon

Interactive plots and diagrams to build intuition. Coming soon.

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