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3278. In the urn there are 18 balls of the same size an
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Uploaded: 12.11.2018
Content: teorver_3278.doc 28,5 kB
Uploaded: 12.11.2018
Content: teorver_3278.doc 28,5 kB
Product description
3278. 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)