摘要
随机变量(r.v.)的独立性在概率论中有着十分重要的意义.本文应用条件概率引入条件独立的概念,给出了连续型r.v.条件独立的含义及其性质.
The independence of the random variables is very important in probability theory probability and statistics. In this paper, we give the concept of conditional independence by conditional probability, and give some new properties of conditional independence.
出处
《吉林师范大学学报（自然科学版）》
2009年第2期112-114,117,共4页
Journal of Jilin Normal University:Natural Science Edition
基金
江苏省教育厅自然科学基金资助项目(05KJD110034)
淮阴师范学院高等教育研究课题基金项目(HSJG2007C002)
关键词
连续型r.v.
相互独立
条件独立
条件期望
条件方差
continuous random variables
mutual independence
conditional independence
conditional expectation
conditional variance
