Possibility
2010-10-10 1:35 am
A paper has 3sections ,each has 2 questions .candidates must answer total 4 questions , what is the possibilities without consider the order.
回答 (2)
2010-10-10 5:02 am
✔ 最佳答案
Total questions =3 * 2=6 questionsChoose 4 question from 6 questions
6C4 =6!/(4!*2!) =15 possibilities
2010-10-10 4:28 am
串錯字囉！
機會率係probability呀！
機會率係probability呀！
收錄日期: 2021-04-24 09:46:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101009000051KK01127