Solution of problem N3775 probability theory total prob

Solution of problem N3775 probability theory total prob

3775. The shop receives the products of three factories. Moreover, the production of the first factory is 20%, the second - 45% and the third - 35% of products. It is known that the average percentage of non-standard products for the first factory is 1%, for the second - 5%, and for the third - 2%. The likelihood of a randomly taken product being non-standard equals ...

Additional information:

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