When the marginal frequencies for both variables under study are random,the chi-square test of _____ is used,and when the marginal frequencies are random for one variable and fixed for the other,the chi-square test of _____ is used.
A)independence;heterogeneity
B)heterogeneity;dependence
C)independence;homogeneity
D)homogeneity;independence

Question

Quizplus · Accepted Answer

When the marginal frequencies for both variables under study are random, the chi-square test of independence is used. When the marginal frequencies are random for one variable and fixed for the other, the chi-square test of homogeneity is used. Therefore, the best choice is C, where the options correctly identify the two types of chi-square tests and their respective conditions.

When the Marginal Frequencies for Both Variables Under Study Are