已知随机变量
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcad8cfeb1d8d468651465499b30cdba.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a3bc0f34bd55c43cf3bbb6bff4f9d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ecfe7c7af741c6ddd5e0daeb4a26637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcad8cfeb1d8d468651465499b30cdba.png)
更新时间:2024-05-12 11:03:37
|
相似题推荐
填空题-单空题
|
容易
(0.94)
名校
解题方法
【推荐1】设随机变量
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b88b0f61f90b434c078794131ba33d9.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1290917c2c835b61384480b335cc1d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de7289a5747511596df0b8c827bda9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b88b0f61f90b434c078794131ba33d9.png)
您最近一年使用:0次
填空题-单空题
|
容易
(0.94)
解题方法
【推荐2】设随机变量
服从正态分布
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00007662f83bcc0047ce3aead094a71b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c1add9e8dac346efb4053eb270618c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662398bcec9233bdd47cb7d6ba6655e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00007662f83bcc0047ce3aead094a71b.png)
您最近一年使用:0次