※ 引述《ohright (...)》之銘言：
: Suppose k identical boxes contain n balls numbered 1 through n.
: One ball is drawn from each box. What is probability that m is
: the largest number drawn???
: 別人問我作業，不過我也不會 ...
: 有大大解的出來嗎？
: 謝謝
Let X be the largest number drawn,
then P(X=m)=P(X≦m)-P(X≦m-1).
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