已知随机变量X的分布列为
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcebdb2dad1b2fcb3e624490363e36c2.png)
______ .
X | 1 | 2 | 3 | 4 |
P | 0.2 | 0.3 | ![]() | 0.1 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcebdb2dad1b2fcb3e624490363e36c2.png)
22-23高二下·黑龙江哈尔滨·阶段练习 查看更多[2]
更新时间:2023-04-13 23:26:05
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【推荐1】设随机变量
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【推荐2】随机变量
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