![](https://lstatic.shangxueba.com/jiandati/h5/images/m_q_title.png)
[主观题]
方差的定义
协方差的定义是cov(X,Y)=E[(X-EX)(Y-EY)]。()
协方差的定义是cov(X,Y)=E[(X-EX)(Y-EY)]。()
提问人:网友aqding
发布时间:2022-01-07
协方差的定义是cov(X,Y)=E[(X-EX)(Y-EY)]。()
A、cov(X,Y)=E[(X-EX)(Y-EY)]
B、cov(X,Y)=E[XY]
C、cov(X,Y)=E[X-Y]
D、cov(X,Y)=E[(X-EX)+(Y-EY)]
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!