Solution of problem N3960 probability theory
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Product description
- Electric bulbs are manufactured at two plants. The first plant produces 45% of the total number of light bulbs, the second - 55%. The production of the first plant contains 90% of standard lamps, the second - 80%. The store receives products from all two plants. What is the probability that the lamp purchased in the store will be standard?
Additional information
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)