expectation expect mathematical expectation expected value
Based on random variable expectation and variance, some inequalities are proved.
基于随机变量的数学期望与方差, 讨论随机变量数字特征的几个不等式。
—— 给力词典精选Their distribution sequences, mathematical expectations, variances and factorical moments are given.
给出了它们的分布列 、 数学期望 、 方差和解乘矩。
—— 给力词典精选Application is given such as comparison to rate of function increase or decrease.
讨论了有关数学期望的计算和性质,并给出了在函数上升或下降速度比较中的应用。
—— 给力词典精选