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Solution of problem N4490 probability theory
4490. The urn contains 2 white and 3 black balls. Two balls are taken out of the urn in a row and they do not return back to the urn both times. Find the probability that both balls taken out turn out to be white.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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Discount for regular customers! If the total of your purchases from the seller
Massimo86
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