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Solution of problem N4385 probability theory
4385. From the basket, which contains 15 white and 5 black balls, take out 2 balls at random. What is the probability that both balls will turn out to be black?
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
exceeds: