Solution of problem N640 Laplace probability theory

Solution of problem N640 Laplace probability theory

640. The probability of occurrence of an event in each individual trial is 0.7. What is the probability that this event will appear at least 1000 and no more than 1080 times with 1500 tests?

Additional information:

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

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