Picking 5 cards out of 52 cards, how many different hands consisting of three kings and two queens are possible?
Pls help me.
A statistic question.?
2010-07-07 8:59 am
回答 (1)
2010-07-07 9:32 am
✔ 最佳答案
# of specified hands= [from 4 kings, choose 3] * [from 4 queens, choose 2]
= 4c3 * 4c2
= (4!/3!1!) * (4!/2!2!)
= 4*6
= 24
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收錄日期: 2021-04-13 17:21:15
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100707005952AAEoGR1