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4086. 80% of refrigerators are produced in defense ente 2019

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4086. 80% of refrigerators are produced in defense enterprises and 20% in civilian ones. The marriage of defense plants is 5%, civil - 12%. A purchased fridge has a marriage. What is the probability that it was produced at a defense plant?

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Additional information

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

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