Contingency Table

Definition

A contingency table is a table that displays the frequencies or counts of two categorical variables. It shows how the categories of one variable are distributed across the categories of another variable.

Related terms

Observed Frequency: The observed frequency is the actual count or number of occurrences in a specific category within a contingency table.

Expected Frequency: The expected frequency is the count or number of occurrences that would be expected if there was no association between the two categorical variables in a contingency table.

Marginal Distribution: The marginal distribution refers to the totals found at the rightmost column and bottom row of a contingency table, showing the distribution of each individual variable separately.