摘要
文章介绍了离散型随机变量数学期望的概念。并利用离散型随机变量对NBA季后赛火箭对爵士的比赛场数进行预测,最后给出预测结果;另外,就乒乓球比赛中的两种赛制,以中国队和韩国队为例,利用离散型随机变量分析不同赛制对中国队的优劣。
The paper introduces the concept of discrete variable first,and uses it to predict the game numbers of NBA season games：the rocket team versus the Jazz,finally gives predicted results.As to the two systems in table tennis games,take the Chinese and Korea teams as example to analyze the influence of different systems to Chinese team by using discrete variable mathematical expectation.
出处
《无锡职业技术学院学报》
2009年第5期42-43,共2页
Journal of Wuxi Institute of Technology
关键词
数学期望
二项式定理
乘法公式
mathematical expectation
binomial theorem
multiplicative formula
