3753. From the first machine tool, the assembly receives 40% of manufactured parts, from the second - 30%, and from the third - 30%. The probability of manufacturing a defective part for each machine is, respectively, 0.01; 0.03; 0.05. The probability that a selected item is at random will be defective is equal to ...

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