Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
When processing statistical data, the standard deviation (x) is often taken as the main numerical characteristic of the dispersion of a random variable x. Since the scattering of a random variable x is associated with the deviation x-a of this variable from its center of distribution a=M(x), then it can also be characterized by a coefficient of variation V equal to the ratio of the standard deviation to the mathematical expectation of the random variable