Statistic amount got from two groups of variables, named A and V, through summing formula X(.V,-.V)(>',-?), where X stands for the mean value of X, and V' stands for mean value of V.
Statistic amount got from two groups of variables, named A and V, through summing formula X(.V,-.V)(>',-?), where X stands for the mean value of X, and V' stands for mean value of V.