Solution of problem N1486 Poisson probability theory

Solution of problem N1486 Poisson probability theory

1486. When transmitting a message, the probability of distortion of one character is 0.1. What is the probability that a message of five characters contains: a) three incorrect signs; b) at least three incorrect signs?

Additional information:

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

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