![](https://i.imgur.com/c7wvUpa.jpg)
[機統] 請教一題機率
![](https://i.imgur.com/c7wvUpa.jpg)
請問大大,這題如何解,謝謝
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推
05/09 23:23,
5年前
, 1F
05/09 23:23, 1F
推
05/10 01:08,
5年前
, 2F
05/10 01:08, 2F
→
05/10 10:17,
5年前
, 3F
05/10 10:17, 3F
推
05/10 10:35,
5年前
, 4F
05/10 10:35, 4F
推
05/10 11:50,
5年前
, 5F
05/10 11:50, 5F
![](https://i.imgur.com/ZiA6JyH.jpg)
→
05/10 11:50,
5年前
, 6F
05/10 11:50, 6F
推
05/10 14:18,
5年前
, 7F
05/10 14:18, 7F
![](https://i.imgur.com/FPPUr5Y.jpg)
→
05/10 14:18,
5年前
, 8F
05/10 14:18, 8F
→
05/10 17:04,
5年前
, 9F
05/10 17:04, 9F
→
05/10 17:05,
5年前
, 10F
05/10 17:05, 10F
→
05/14 21:43,
5年前
, 11F
05/14 21:43, 11F
→
05/14 21:43,
5年前
, 12F
05/14 21:43, 12F
討論串 (同標題文章)