作者sleepsoy (洪小義)
看板Grad-ProbAsk
標題[理工] [機率]-成大94-電通 通訊數學
時間Thu Jan 28 17:11:41 2010
題目：
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 ?
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