已知随机变量
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/789f54c162ae39677461e77dc21dcfb4.png)
__________ (用数字作答).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af77b0182b763c0a9cdc6e63948e4f4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/789f54c162ae39677461e77dc21dcfb4.png)
更新时间:2021-03-17 08:05:29
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【知识点】 利用二项分布求分布列解读
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【推荐1】已知随机变量
服从二项分布
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200594422abc2e5676fa4fe713200c48.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9059658b8ba02a81ae9a81935ccd9ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200594422abc2e5676fa4fe713200c48.png)
您最近一年使用:0次
填空题-单空题
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较易
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【推荐2】如果随机变量
服从二项分布
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服从二项分布
,那么当
变化时,关于
成立的
的个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ad23f816d01bf1fb83f8ff206ddc52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4e7ac0262262d8511e5a727dcea6e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa0010cb466163db1349fc1040f6b439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89a81f098ee8b5c8dc608268a9e3957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa17e7a42ccc8cc2d770f1c4b2a30243.png)
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