Solution of problem N433 Laplace probability theory

Solution of problem N433 Laplace probability theory

433. The probability that at random the product will prove to be usable without debugging is 0.97. The controller checks 400 items. If among them there are 16 or more in need of debugging, the whole lot is returned for revision. Find the probability that a batch of products will be accepted.

Additional information:

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