Solution of problem N3128 probability theory

Solution of problem N3128 probability theory

3128. In the box are 8 red pencils and 4 blue ones. 5 pencils are taken out at random from the box. What is the probability that 3 of them will turn red, and 2 - blue?

Additional information:

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

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