Solution of problem N4629 Poisson probability theory

Solution of problem N4629 Poisson probability theory

4629. Radio equipment consists of 800 elements. The probability of failure of one element during the year of operation is 0.005 and does not depend on the state of other elements. What is the probability of failure of two elements in a year; more than two items per year?

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

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