Set .....is a simple random sample from the population

匿名用户 最后更新于 2021-09-06 01:24 数学类Mathematics

aa109cdd23fbd5334f414c030977ae5f.png

Set X1 X 2,., X (n >2). is a simple random sample from the population N(,1),X is the sample mean, denote Y;X-,i=1,2,…,n()D(),i=1,2,n; (2)Covariance of and Yn, Cov(, Yn).


已邀请: