名校
1 . 已知随机变量
服从正态分布
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed974e865bb82cca5b319a98e9a110b.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c67a470ef7c8c9d3afc99c82af18c65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d503f422ea3a26979e7c5550cffdfd0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed974e865bb82cca5b319a98e9a110b.png)
您最近一年使用:0次
2017-12-22更新
|
420次组卷
|
3卷引用:四川省资阳市2017届高三4月模拟考试数学(理)试题