Solution of problem N3278 probability theory
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Product description
- In the urn there are 18 balls of the same size and appearance: 9 of them are white and 9 are black. 7 balls are taken at random (without returning to the urn). What is the probability that among them 4 will be white?
Additional information
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)