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Solution of problem N2645 probability theory

Solution of problem N2645 probability theory

Seller: Massimo86

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Product description

  • On the table are 30 examination tickets with numbers 1, 2, 3, ... 30. The teacher takes three any tickets. What is the probability that they are from the last four?

Additional information

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)