3. You have N boxes (labeled 1,2,..., N), and you have k balls. You drop the...

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3. You have N boxes (labeled 1,2,..., N), and you have k balls. You drop the balls into the boxes, independently of each other. For each ball the probability that it will land in a particular box is 1/N. Let Xi be the number of balls in box 1 and Xv the number of ball in bax N. Calculate Com,X)

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