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Solution of problem N4645 probability theory
4645. 20 textbooks are randomly placed on a shelf in the library, 4 of them are bound. The librarian takes 2 textbooks for good luck. Find the probability that at least one of the selected textbooks will be bound.
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: