Решение задачи N5197 теория вероятностей

5197. Lot of 15 parts contains 3 defective parts. The controller takes 5 parts to check at random. If no defective parts are found among the selected parts, then the batch is accepted. Find the probability that the given batch will be accepted.

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