Solution of problem N4676 probability theory

Solution of problem N4676 probability theory

4676. There are products of four grades n1=3, n2=3 n3=4, n4=2. M items are taken at random to control. Determine the probability that among them m1=2 is first-class, m2=1, m3=2 and m4=2 are second, third and fourth grades, respectively.

Additional information:

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

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