Solution of problem N869 Poisson probability theory

Solution of problem N869 Poisson probability theory

869. The probability of a "failure" in the operation of the telephone exchange for each call is 0.011. Received n = 1000 calls. Determine the probability k = 7 "failures".

Additional information:

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

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