Two-Way Tables
Overview
Goal. Read a two-way frequency table, compute joint, marginal, and conditional relative frequencies, and compare conditional rates to judge association.
Conditional relative frequency (definition). A relative frequency computed within one row or column of a two-way table: the count in a cell divided by that row's (or column's) total.
Lesson Notes
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Lesson Video
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Interactive Activity
Goal. Read a two-way table and compute joint, marginal, and conditional relative frequencies — and use conditional rates to spot a possible association.
Conditional relative frequency (definition). A relative frequency computed within one row or column of a two-way table: the count in a cell divided by that row's (or column's) total.