摘要
本文介绍了用特征函数、条件数学期望、对称性等求解数学期望的方法,解法各具特色。
This paper have a introduction on the resolving method of mathematical expectatio： the definition and property of mathe- matical expectatio, characteristic functions, conditional mathematical expect, symmetry.
出处
《辽宁省交通高等专科学校学报》
2008年第2期41-42,共2页
Journal of Liaoning Provincial College of Communications
关键词
数学期望
计算方法
概率论
mathematical expectatio
calculation methods
the probability statistics
