Решение задачи N3805 теория вероятностей полная вероятн

3805. Parts from three machines arrive in the assembly shop. The first machine gives 5% of marriage, the second - 3%, the third - 2%. What is the probability that a component taken for assembly is standard if 400 parts came from the first machine gun, 500 from the second and 100 from the third?

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