随机变量的方差、协方差与相关系数的一些性质及关系

Some Characters and Relations of Random Variable Variance, Random Variable Covariance and Random Variable Relative Uotiety

本文就随机变量的方差、协方差及相关系数的关系进行了论证，给出文（1）中推广形式，在应用上体现了一般性。

This paper demonstrates the relations of Random Variable Variance, Random Variable Covariance, and Relative Quotiety, presenting the extending form in the Article I, and showing the universality in application.