what is the test for variance? how to test variance in r how to test for variance in r how do you find variance using the chi square test what is variance test how to test for variance with chi square test which variance measures the chi square test how do we know the variance what is the variance test in r when to use chi square test in r which test is used to test variance how to find the variance in r chi square test of variance how to test variance in r what is the variance of a data can a chi square test test for variance how test for variance with chi square how to test for variance in r how to test for variation in r when to test variance using chi square test?