Stage 34 · Statistics · 34.7All lessons →
Stage 34 · Statistics

34.7 Association in Categorical Data: The Test of Independence

Handle paired categorical data, use a contingency table and chi-square to judge whether two traits are related, and carry the inference mindset toward logical judgment, leading into the next stage

5 knowledge points
Knowledge point pages
34.7.1 Categorical Variables and Contingency Tables34.7.2 Spotting Association from Frequencies34.7.3 The Meaning of Independence and Expected Counts34.7.4 The Chi-Square Statistic χ²34.7.5 The Test of Independence and the Verdict
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