A chi-square test for independence is being used to evaluate the relationship between two variables,one of which is classified into three categories and the second of which is classified into four categories.The chi-square statistic for this test would have a df value equal to ____.
A)6
B)7
C)10
D)11

Question

A chi-square test for independence is being used to evaluate the relationship between two variables,one of which is classified into three categories and the second of which is classified into four categories.The chi-square statistic for this test would have a df value equal to ____.​
A)​6
B)​7
C)​10
D)​11

Quizplus · Accepted Answer

The degrees of freedom (df) for a chi-square test for independence is calculated as (number of rows - 1) * (number of categories in the second variable - 1). Here, with three categories in the first variable and four in the second, df = (3-1)*(4-1) = 2*3 = 6.

A Chi-Square Test for Independence Is Being Used to Evaluate