Решение задачи N4278 теория вероятностей полная вероятн

4278. Two factories produce the same glass for car headlights. The first factory produces 50% of these glasses, the second - 50%. The first factory produces 5% of defective glasses, and the second - 3%. Find the likelihood that a glass accidentally purchased in a store will be defective.

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