Solution of problem N1470 Laplace probability theory

Solution of problem N1470 Laplace probability theory

1470. It is established that the consumer service enterprise performs on average 60% of orders on time. What is the probability that out of 150 orders accepted for some time will be fulfilled in time:
a) 90 orders; b) from 93 to 107 orders?

Additional information:

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

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