简述均值的数学性质。
(1)各变量值与均值的离差之和为零。(2)各变量值与均值的离差平方和最小。(3)均值是统计分布的均衡点。
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明:本文由翰林刷题小程序授权发布,如需转载请注明出处。
本文链接:https://doc.20230611.cn/post/175712.html
上一篇:谈判说服
下一篇:How to Interview PeopleInterviewing (采访) is one of those skills that you can only get better at. You will never again feel so ill at ease as when you try it for the first time, and probably you'll never feel entirely comfortable trying to get fro