Solution of problem N618 Laplace probability theory

Solution of problem N618 Laplace probability theory

618. The probability that a part taken from a batch is random at random is equal to 0.8. Find the probability that at least 400 standard ones will be among the 600 randomly taken items; Exactly 400 standard.

Additional information:

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

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