A chi-square test for independence has df = 2.What is the total number of categories (cells in the matrix)that were used to classify individuals in the sample?
A)two
B)three
C)four
D)six

Question

A chi-square test for independence has df = 2.What is the total number of categories (cells in the matrix)that were used to classify individuals in the sample?​
A)​two
B)​three
C)​four
D)​six

Quizplus · Accepted Answer

The degrees of freedom for a chi-square test for independence is calculated as (rows - 1) * (columns - 1). Given df = 2, possible combinations are 2x3 or 3x2, resulting in a total of 6 categories (cells).

A Chi-Square Test for Independence Has Df = 2