請問一數學機率問題 - 拼圖
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By Gilbert
at 2012-10-24T06:24
at 2012-10-24T06:24
Table of Contents
3/5 +1
理論都忘光光了 只好土法煉鋼
|白白|白黑|黑黑| 排列數6!/3!/3!=20
20種中 每一種有三顆白球可能被抽出 所以事件總數是20x3
再把60種列出來
白白 類 ->4
黑黑 類 ->4
黑白 類 ->14
白黑 類 ->14
36/60=3/5
同意趴所說的:學長不一定是對的
原po為什麼不再堅持一次3/5的答案XD
有沒有可能學長故意裝的 結果你又給一堆答案 整個感覺是在亂猜XD
當然3/5也不一定是對的
只不過排列組合有疑義時 通常是因為表達上的問題XD
--
理論都忘光光了 只好土法煉鋼
|白白|白黑|黑黑| 排列數6!/3!/3!=20
20種中 每一種有三顆白球可能被抽出 所以事件總數是20x3
再把60種列出來
白白 類 ->4
黑黑 類 ->4
黑白 類 ->14
白黑 類 ->14
36/60=3/5
同意趴所說的:學長不一定是對的
原po為什麼不再堅持一次3/5的答案XD
有沒有可能學長故意裝的 結果你又給一堆答案 整個感覺是在亂猜XD
當然3/5也不一定是對的
只不過排列組合有疑義時 通常是因為表達上的問題XD
--
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