Решение задачи N3704 теория вероятностей Байеса

3704. Two typists printed the same number of pages. The probability that the first typist will make an error is 0.06, for the second typist this probability is 0.07. An error was detected during the text verification. Find the probability that the first typist made a mistake.

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