If 5 cards are randomly drawn from a pack of 52 playing cards, find the probability
of getting two pairs.
(ans:0.00475)
My calculation:
[4C2 x 13 x 4C2 x 12 x 44 x 1/2]/52C5
=0.0475
Please help me to find the mistake, Thankyou
F.4 Maths probability(3)
2014-06-15 8:10 pm
回答 (2)
2014-06-15 8:27 pm
✔ 最佳答案
http://en.wikipedia.org/wiki/Poker_probabilityhttps://answers.yahoo.com/question/index?qid=20090308150714AA8LEAc
http://www.probabilityinpoker.com/two-pairs.shtml
2014-06-15 12:27:37 補充：
You are correct, the given answer is wrong.
You should see the three links I provided in the comment box.
Hand
Distinct Hands
Frequency
Probability
Cumulative probability
Odds
Mathematical expression of absolute frequency
Two pair
圖片參考：https://s.yimg.com/lo/api/res/1.2/YWOwqHJMSGaC4YwHraKO_w--/YXBwaWQ9dHdhbnN3ZXJzO3E9ODU-/http://upload.wikimedia.org/math/b/6/b/b6ba3db3af43e05aa23ff871f1d7fa91.png
2014-06-18 4:52 am
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2014-06-18 00:25:48 補充：
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2014-06-18 00:25:48 補充：
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收錄日期: 2021-04-15 15:50:31
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140615000051KK00046