2023高二·全国·专题练习
1 . 贝叶斯公式
设
是一组两两互斥的事件,
,且
,则对任意事件
,
,有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c7d48d4f708f33f50d9f9be0205549.png)
_________ =_________ ,
.
设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252bab154aa5bdc9b4bce4c0d43aaf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08767405a1044072bcd4c770c18b39d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3b5c916beac03a695b859c45b89773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749c94f5d5fb7f67f75536f823ef440a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63c8bdf56ec2f33d199122653509b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c7d48d4f708f33f50d9f9be0205549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b0e3b00fe47801afb53ec56706c21a.png)
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21-22高二·全国·课后作业
2 . 一个小组有6个人,任选2名代表,则甲当选的概率为__________ .
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