On the basis of random numbers, The structure-formula of the normal random variable has been designed according to the limit theorem.
根据中心极限定理，以随机数为基础，设计了正态随机变量的结构公式，其数学期望和方差可任意给定。
Cumulate probability distribution of trials of random variable of normal distribution.
随机变数多次试验结果之累积机率为常态分布。
The track geometry irregularity is a stable normal distribution and state-history random variable.
轨道几何不平顺为平稳的正态分布和各态历经的随机变量。
The paper affirms the stochastic properties of household gas consumption, and then proves a random variable in normal distribution.
本文通过分析确认了居民燃气消耗量的随机性，进而证明其为服从正态分布的随机变量。
The paper affirms the stochastic properties of household gas consumption, and then proves a random variable in normal distribution.
本文通过分析确认了居民燃气消耗量的随机性，进而证明其为服从正态分布的随机变量。
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