A chi-square test for independence is used to evaluate the relationship between two variables.If both variables are classified into 2 categories,then what is the df value for the chi-square statistic?
A)1
B)2
C)3
D)Cannot determine the value of df from the information provided

Question

Quizplus · Accepted Answer

When both variables are classified into 2 categories, the df value for the chi-square statistic is calculated as (number of rows - 1) x (number of columns - 1), which in this case would be (2-1) x (2-1) = 1.

A Chi-Square Test for Independence Is Used to Evaluate the Relationship