从均值为、方差为（有限）的任意一个总体中抽取大小为n的样本，则https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/256cb9873b4c42ed82cded6a3d6b9b91.png
举一反三
- 从均值为μ、方差为σ2 （有限） 的任意一个总体中抽取大小为n的样本，则
- 从均值为μ、方差为（有限）的任意一个总体中抽取大小为n的样本，则（）/ananas/latex/p/3922
- 体系处于<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/7bae90aad0f0442d9d6adf4ff4c69c2c.png" />状态,则体系的动量取值为 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/156065cb1de5431a9a2ea0b029f26f79.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/627120343f054317828addfe01200e5b.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/09f88938fc6f43a0819284117c0b14fa.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/2311487532fb45c789f7dce939291db1.png" />
- 从均值μ，方差为（有限）的任意一个总体中抽取大小为n的样本，则当n为充分大时，样本均值的分布近似服从正态分布
- 从均值为a,方差为sigma^2的任意一个总体中抽取大小为n的样本，则（