Solution of problem N3768 probability theory total prob

Solution of problem N3768 probability theory total prob

3768. Products from three workshops came to the finished product warehouse: 30% from the first workshop, 45% from the second, 25% from the third. Among the products of the first workshop, the marriage averages 0.6%, the second - 0.4%, the third - 0.16%. Determine the likelihood that one item taken in stock will be suitable.

Additional information:

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