Solution of problem N3335 probability theory

Solution of problem N3335 probability theory

3335. In the lottery of 15 tickets 5 winnings. Someone bought two tickets. Find the probability that: 1) both tickets are winning; 2) none of the tickets are not winning; 3) among the tickets purchased exactly one winning

Additional information:

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

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