Решение задачи N3710 теория вероятностей полная вероятн

3710. Two typists print the text of 6 pages, moreover, the first 2 pages are typed by the first typist, and the remaining 4 pages are printed by the second. The probability of an error of the first 0.1, and the second - 0.2. Find the probability that the text will be a mistake?

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