Решение задачи N3625 теория вероятностей полная вероятн

3625. The assembly receives parts from three machines. The first gives 25%, the second - 30% and the third - 45% of parts of this type entering the assembly. The first machine allows 0.1% non-standard parts, the second - 0.2%, the third - 0.3%. Find the probability of receipt for the assembly of non-standard parts.

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