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Random Sum Resolution (Posted on 2016-06-06) |
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Five random positive integers are chosen independently with equal probability from 1 to N inclusively, where N is a positive integer.
Find the probability that:
(i) The number chosen last is equal to the sum of the four numbers that were chosen first.
(ii) The largest number chosen is the sum of the other four.
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| solution | Charlie | 2016-06-06 10:51:52 |
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