解题方法
1 . 某程序框图,该程序执行后输出的W=_______________ .
![](https://img.xkw.com/dksih/QBM/2020/2/28/2408952850251776/2409274499301376/STEM/17b05ef5924a4f5ea6987eaacf18eb2c.png?resizew=156)
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2 . 已知
、
是互斥事件,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70683fa79df00231e2b7ef8381b3de3.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7b147f1ad108de539fd113fc6386c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ef226ff3bdb2a0066fd5356be9af5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70683fa79df00231e2b7ef8381b3de3.png)
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