Mathematics, 09.03.2021 20:20 020020
An urn contains 15 numbered balls, of which 9 are red and 6 are white. A sample of 5 balls is to be selected. How many samples contain at least 4 red balls?
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An urn contains 15 numbered balls, of which 9 are red and 6 are white. A sample of 5 balls is to be...
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