随机变量的加权平均值是期望值。
The weighted mean of the random variable is the expected value.
3方差的专业定义是随机变量的二次中心矩，与期望值之差的平方的加权平均值。
The technical definition of variance is the random variable's second central moment, the weighted average of the square of the differences from the expected value.
本文研究的是相依随机变量的移动平均过程的完全收敛性。
In this paper, we make a study on the complete convergence of moving average processes of dependent random variables.
应用推荐