作者dishuman (旺旺)
看板Grad-ProbAsk
标题Re: [理工] [机率]-成大94-电通 通讯数学
时间Fri Jan 29 21:24:31 2010
C(6,1)xC(6,1)xC(10,1)xC(12,1)xC(30,4)/C(34,6)
我的解法
有错请指正
※ 引述《sleepsoy (洪小义)》之铭言：
: 题目：
: From a faculty of six professors , six associate professors , ten assistant
: professors and twelve instructors , a committee , of size six is formed
: randomly . What is the probability that there is at least one person from each
: rank on the committee ?
: 不知道怎麽下手...请高手帮忙!!!
: 谢谢
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