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.

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Firstly, the definitions of complex quasi - random variable and primary norm are introduced.

引入复拟(概率)随机变量, 准范数的定义.

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Do The Function of A Continuous Type of Random Variable Also Belong To One?

连续型随机变量的函数还是连续型随机变量 吗 ?

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Property of symmetric random variable is discussed by introducing the concept of almost supremum and infimum.

讨论了具有倒对称随机变量的若干性质.

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This article's emphasis studies the random variable using the copula function to describe tail dependence.

本文的重点就是应用copula函数来研究随机变量的尾部相关性的问题.

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The variance of a random variable is the square of its standard deviation.

方差的算术平方根为该组数据的标准差.

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In credibility model, we regard risk X a random variable which is depend on a parameter.

在可信性模型中, 通常把风险X的视为依赖于一参数的随机变量.

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