| 两个随机变量和的分布类型分析 |
| |
| 引用本文： | 于益华.两个随机变量和的分布类型分析[J].湘南学院学报,2014(2):20-22. |
| |
| 作者姓名： | 于益华 |
| |
| 作者单位： | 湖南城市学院数学与计算科学学院,湖南益阳413000 |
| |
| 摘 要： | 在三种不同情况下,对两个随机变量和的分布类型进行了研究,证明了一个离散型随机变量与一个连续型随机变量的和在一定条件下为连续型随机变量,发现两个连续型随机变量的和却不一定是连续型随机变量,而两个非连续型随机变量的和也可能为连续型随机变量.
|
| 关 键 词： | 随机变量 离散型 连续型 相互独立 |
Analysis on the Type Probability Distribution about the Summation of Two Random Variables |
| |
| Yu Yihua.Analysis on the Type Probability Distribution about the Summation of Two Random Variables[J].Journal of Xiangnan University,2014(2):20-22. |
| |
| Authors: | Yu Yihua |
| |
| Institution: | Yu Yihua (Department of Mathematrics, Hunan City University, Yiyang 413000, China) |
| |
| Abstract: | In this paper ,we investigate the type of probability distribution about the summation of two random variables under three different circumstances ,and prove that the summation of a discrete random variable and a continuous one can be a continuous random variable under some conditions .We also find out that the summation of two continuous random variable may not be a continuous one ,and the summation of two discontinuous random variables may be a continuous one . |
| |
| Keywords: | random variable discrete type continuous type mutual independence |
| 本文献已被 CNKI 维普 等数据库收录！ |
