若随机变量
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a040e9f33de17763134c170b30dbae.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c814363462126deebb5699784833b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fc01914084a0cbeae5daff61751c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a040e9f33de17763134c170b30dbae.png)
22-23高二下·全国·开学考试 查看更多[2]
1号卷·A10联盟2022-2023学年(2021级)高二下学期开年考数学(北师大版)试题(已下线)8.3 正态分布(七大题型)-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第二册)
更新时间:2024-02-14 19:47:17
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