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selecting a number with certain probability

807598Sep 23 2006 — edited Sep 24 2006

Hi guys,
i've used the random number method is java and know that it outputs a random number with equal probability.
OK here's my question. i've got a set of numbers from 1 to N and I want to output ONE number in the set say r with probability r/N , how do I do that??

ex: the set is {1,100} and i want to pick 19 with a probability 19/100

Thanks in advance for any help provided!

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Locked on Oct 22 2006

Added on Sep 23 2006

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