3759. The assembly shop receives parts from two production lines. The performance of these lines are referred to as 5: 4. The probability of marriage for the first line is 0.02, for the second - 0.04. a) Find the probability that a part taken at random is defective. b) At random, the taken part turned out to be defective. Determine the probability that it is made on the first line.

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