probability..急

2008-08-07 3:10 am
what is the probability of drawing five card from a deck to form a straight flush(同花順)

回答 (1)

2008-08-07 3:59 am
✔ 最佳答案
For drawing 5 cards out of 52 cards, the number of favourable outcome = 52C5

To form a straight flush, there are totally 4 X 10 = 40 combinations.

That is A,2,3,4,5
2,3,4,5,6,
...
10,J,Q,K,A

And also 4 kinds of cards.

So, the required probability

= 40 / 52C5

= 0.0000154

參考: Myself~~~


收錄日期: 2021-04-26 12:29:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080806000051KK02856

檢視 Wayback Machine 備份