3608. Among those entering the assembly, parts turned out to be defective: 1% from the first machine, 2% from the second, 2.5% from the third, and 5% from the fourth. Machine productivity is 4: 3: 2: 1 respectively. Taken as a luck item was standard. Find the probability that it is made on the first machine.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
No feedback yet