[機統] 取鞋問題
鞋櫃中有不同鞋子4雙,從中任取4隻,求下列各事件發生的機率
1.配成2雙
2.恰得1雙
我實在搞不懂 C的用意 一下子選雙 一下子選隻...還有左鞋右鞋
請教神手~
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◆ From: 114.40.152.205
推
06/15 18:52, , 1F
06/15 18:52, 1F
→
06/15 18:52, , 2F
06/15 18:52, 2F
推
06/15 20:58, , 3F
06/15 20:58, 3F
推
06/15 20:59, , 4F
06/15 20:59, 4F
推
06/15 22:19, , 5F
06/15 22:19, 5F
→
06/15 22:19, , 6F
06/15 22:19, 6F
→
06/15 22:20, , 7F
06/15 22:20, 7F
→
06/15 22:21, , 8F
06/15 22:21, 8F
→
06/15 22:21, , 9F
06/15 22:21, 9F
推
06/15 22:35, , 10F
06/15 22:35, 10F
推
06/16 11:57, , 11F
06/16 11:57, 11F