
[中學] 機率

請問該題機率應如解才是呢
感謝大大解惑
謝謝
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推
12/01 10:51, , 1F
12/01 10:51, 1F
推
12/01 12:44, , 2F
12/01 12:44, 2F
→
12/01 12:44, , 3F
12/01 12:44, 3F
→
12/01 12:45, , 4F
12/01 12:45, 4F
推
12/01 13:04, , 5F
12/01 13:04, 5F
→
12/01 13:49, , 6F
12/01 13:49, 6F
→
12/01 16:48, , 7F
12/01 16:48, 7F
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