what test would you use to test for the difference between two discrete distributions? why kolmogorov-smirnov test is invalid? how to test empirically for difference what test is used to test difference in means what test is a chi square test which test to use to test the difference between discrete distributions? what test is the difference between a discrete distribution and a continuous distribution? what test is useful to test the difference between two empirical discrete distributions how to tell if discrete and empirical distributions are different? what is the chi squared test for what is the chi quadrant test used for how is the difference in means between two empirically different data set how is the difference test used in discrete sampling what test is a discrete data set test how to check the difference in means between two empirically different distributions what is the test of difference mean and mean? what is the chi squared test used for why chi squared test is invalid what is the chi quared test for what is the chi squared test?