摘要
求解随机变量的数字特征是数理统计中的一个重要课题,本文利用泰勒级数和条件数学期望给出了正态分布数字特征的求解方法,并将所得结果做了适当的推广。
Numerical characteristic of random variable is an important section in mathematical statistics. This paper proposes two methods for solving numerical characteristics of normal distribution by using Taylor series and conditioned mathematical expectation and generalizes the conclusion.
关键词
泰勒级数
条件数学期望
正态分布
数字特征
Taylor series
conditioned mathematical expectation
normal distribution
numerical characteristics
