Mathematics, 27.06.2020 02:01 ovaldez5237
An urn contains 4 white balls and 7 red balls. Three balls are selected. In how many ways can the 3 balls be drawn from the total of 11 balls: (a) If 2 balls are white and 1 is red? (b) If all 3 balls are white? (c) If all 3 balls are red?
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An urn contains 4 white balls and 7 red balls. Three balls are selected. In how many ways can the 3...
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