Solution of problem N1277 Poisson probability theory

Solution of problem N1277 Poisson probability theory

1277. In a batch of 1000 items there are 10 defective ones. Find the probability that among 50 items taken at random from this party, exactly 3 will be defective.

Additional information:

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

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