3770. The warehouse receives products from 3 factories. Moreover, the production of the first factory is 20%, the second - 46%, and the third - 34%. It is known that the percentage of non-standard products for the first factory is 3%, for the second 2%, and for the third - 1%. Find the probability that a product taken at random is produced at the first factory, if it turned out to be non-standard.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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