Solution of problem N1854 Laplace probability theory

Solution of problem N1854 Laplace probability theory

1854. The device consists of 400 elements, working independently of each other. The probability of failure of any element that has worked time t is 0.15. Find the most probable number of devices that can refuse after a time t and the probability of rejecting such an amount.

Additional information:

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

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