设总体<img src="/lqwvjeImg/13/138e9daecede01e61c514d7561f82047.png" style="width:91px;height:24px;">,<img src="/lqwvjeImg/34/342c3a19aeaaa21f0a7a7df07fdeca54.png" style="width:45px;height:24px;">…,<img src="/lqwvjeImg/91/91e9acb3d8c66d732c43a24c1b314a09.png" style="width:23px;height:24px;">是来自总体的一个样本,则<img src="/lqwvjeImg/fa/faf2347774ea334e4c93acb9d4ccdc27.png" style="width:16px;height:17px;">的无偏估计量是( ).<br>·<img src="/lqwvjeImg/b9/b9d4c523a8c080213dce472c365c8990.png" <br>·<img src="/lqwvjeImg/d5/d5d4e708c99020aa851324db2484e25d.png" <br>·<img src="/lqwvjeImg/00/0050704fd92b4bf3f6fc91012f9fcbd3.png" <br>·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/155108621986413b2593c731441d998030ae3ee6817ceimage55.png"

设总体

…,

是来自总体的一个样本,则

的无偏估计量是( ).
·

·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/155108621986413b2593c731441d998030ae3ee6817ceimage55.png"

出自：佳木斯大学语言治疗学

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10245629】个 (题库试题定时更新)