從一副撲克牌中取6張一組求?
(1)任意拿的情形有幾種?
(2)恰好拿到4張紅心的情形有幾種?
(3)恰好拿到3張Q 3張J的情形有幾種?
(4)恰好拿到3張Q 或3張J的情形有幾種?
請教各高手:離散數學
2010-06-29 5:35 am
回答 (1)
2010-06-29 7:10 am
✔ 最佳答案
(1) C(52,6)=20358520(2) C(13,4)*C(39,2)=529815
(3) C(4,3)*C(4,3)=16 (3張Q, 且3張J)
(4) (3張Q or 3張J)=(3張Q,另3張任意)+(3張J,另3張任意)-(3張Q且3張J)
=C(4,3)*C(48,3)*2-C(4,3)*C(4,3)=138352
收錄日期: 2021-04-30 15:02:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100628000016KK08069