名校
解题方法
1 . 已知
,
,随机变量
的分布列如下:
当
取最大值时,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffbb4e6b92463a41bd9460dac6b1ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![]() | 0 | ![]() | ![]() |
![]() | ![]() | ![]() | ![]() |
当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf3baba074e8aeb6f3ea117865bbd1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc23dc1709498e8920d7d243213190b2.png)
A.1 | B.![]() | C.3 | D.![]() |
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2021-03-26更新
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3卷引用:江西省贵溪市实验中学高中部2020-2021学年高二下学期第三次月考数学(理)试题