A random variable is a function that takes values based on a probability distribution.
随机变量是一个根据概率分布取值的函数。
Instead of this single value, a random variable has a function that describes the likelihood of values for the estimate and is called the variable's probability distribution.
取代单个值，随机变量拥有描述估计值可能性的函数，该函数称为变量的概率分布。
This paper introduces the problems of some identical equation solved by the numerical characters of the classic probability and stochastic variable.
介绍了用古典概率和随机变量的数字特征来解决数学分析中的一些恒等式问题。
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