[問題] 機率...
黑球3顆,白球4顆,共取五顆球,
請問第五球恰好一種色球用完的機率
請問板上的高手們,這題如何用C解?
謝謝
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推
08/28 16:37, , 1F
08/28 16:37, 1F
→
08/28 16:42, , 2F
08/28 16:42, 2F
推
08/28 16:50, , 3F
08/28 16:50, 3F
→
08/28 16:52, , 4F
08/28 16:52, 4F
推
08/28 16:54, , 5F
08/28 16:54, 5F
→
08/28 17:12, , 6F
08/28 17:12, 6F
→
08/28 17:15, , 7F
08/28 17:15, 7F
推
08/28 17:16, , 8F
08/28 17:16, 8F
→
08/28 17:28, , 9F
08/28 17:28, 9F
→
08/28 17:36, , 10F
08/28 17:36, 10F
推
08/28 19:14, , 11F
08/28 19:14, 11F
→
08/29 09:41, , 12F
08/29 09:41, 12F
推
08/29 20:23, , 13F
08/29 20:23, 13F
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