摘要
文章给出了连续型随机变量差以及积的分布密度公式。针对两个独立同服从标准正态分布的随机变量详细推导了其积的分布密度公式和特征函数,并给出了涉及标准正态分布随机变量乘积函数分布的几个结论。
This paper offers distribution density formulas of difference and product for continuous random variables. Aiming at the two independent random variables with standard normal distribution, the paper deduces in detail the distribution density formula and eigerffunction of their product. Besides, several conclusions are given for product function distribution of random variables with standard normal distribution.
出处
《统计与决策》
CSSCI
北大核心
2017年第10期10-13,共4页
Statistics & Decision
基金
上海师范大学骨干教师教学激励计划教研团队建设项目
上海师范大学本科教学(高等数学)建设项目
关键词
连续型随机变量
随机变量的差
随机变量的积
标准正态分布
continuous random variable
difference of random variables
product of random variables
standard normal distribution
