名校
1 . 已知随机变量
,其正态分布密度曲线如图所示,若向长方形
中随机投掷1点,则该点恰好落在阴影部分的概率为( )
附:若随机变量
,则
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/219c24a3-7929-4ca3-a60c-da32c9574903.png?resizew=198)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033a8fe29a5468aa22d1a62a874b0e78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
附:若随机变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6814d3993a9ff7100ccb592db3253e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70af1e2ccc61a8fd41e0548f233f9757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d754351d85040549d4e906d0638fd7bd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/219c24a3-7929-4ca3-a60c-da32c9574903.png?resizew=198)
A.0.1359 | B.0.7282 | C.0.6587 | D.0.8641 |
您最近一年使用:0次
2020-03-06更新
|
862次组卷
|
7卷引用:安徽省池州市2018-2019学年高二下学期期末数学(理)试题