Solution of problem N5125 probability theory
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Product description
- In a batch of 100 products identical in appearance, 40 products of the 1st grade and 60 products of the 2nd grade are mixed. Find the probability that two items chosen at random are:
a) the same kind
b) different varieties
Additional information
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)