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3901. In the box there are parts of three types: 40 parts of the first type; 50 - the second and 60 - the third, and painted among them are, respectively, 20%, 40% and 60%. a) Find the probability that a piece extracted from a box is colored at random. b) At random, the extracted part was painted. Find the probability that this is a second type item.
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- Content type File
- Content description 31 kB
- Added to the site 12.02.2019
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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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