需解全題,謝
http://i1233.photobucket.com/albums/ff400/rein1993/IMG1_zps56b0cea5.jpg
數學-排列/概率一問
2013-04-10 6:08 am
回答 (3)
2013-04-10 6:41 am
✔ 最佳答案
1. 8!*C(7,7)*7! =2032128002. 7!*[C(8,2)+C(8,1)]*8! =7315660800
3. 7!*8!/ 15! =203212800/1307674368000~1.554/10000
2013-04-10 8:38 pm
(A)
排列數目
= 7!8!
= 203212800
(B)
排列數目
= 8!9!/2!
= 7315660800
排列數目
= 7!8!
= 203212800
(B)
排列數目
= 8!9!/2!
= 7315660800
2013-04-10 8:33 pm
(C)
所求的概率
= 7!8!/15!
= 1/6435 ...... (答案)
所求的概率
= 7!8!/15!
= 1/6435 ...... (答案)
收錄日期: 2021-04-13 19:24:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130409000051KK00339