Spearman's rank correlation coefficient

This module covers Spearman's rank correlation coefficient ($r_s$), a non-parametric measure of association between two ranked variables. You will learn when to use it, how to calculate it, and how to interpret its value for IB 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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