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###### How many seven-digit numbers can be formed with no repeated digits_How many seven-digit numbers with no repeated digits contain a 3 but notAn urn contains 20 red balls and 15 white balls. sample of five balls is selected, with none retured t0 the urn after selection.How many different samples are possible?Suppose all the red balls are numbered. How many samples contain 5 red balls?

How many seven-digit numbers can be formed with no repeated digits_ How many seven-digit numbers with no repeated digits contain a 3 but not An urn contains 20 red balls and 15 white balls. sample of five balls is selected, with none retured t0 the urn after selection. How many different samples are possible? Suppose all the red balls are numbered. How many samples contain 5 red balls?

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