Thread: need a probability formula
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Old 01-06-2007, 06:53 AM
alphatmw alphatmw is offline
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Join Date: Jun 2005
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Default need a probability formula
there are X marbles in a bowl. Y number of them are red. if i pick out Z marbles, what is the probability i will have at least 1 red marble? at least 2? what about exactly 1 or 2?
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