名校
解题方法
1 . 已知X服从正态分布
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7b8eb4d3c548075465aef500f12931.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778dfb406e5ca6131f7e39a1cdf145c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f405059312f4211b117b6338993f33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7b8eb4d3c548075465aef500f12931.png)
您最近一年使用:0次
2023-04-25更新
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421次组卷
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3卷引用:贵州省凯里市第一中学2023届高三三模数学(理)试题