3777. The shop receives the products of three factories. Moreover, the production of the first factory is 30%, the second - 45% and the third - 25% of products. The average reject rate for the first factory is 3%, for the second - 2% and for the third - 4%. The probability that a defective product is produced at the first factory is equal to

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