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A bag contains 30 white balls and 10 red balls. 16 are drawn one by one randomly from the bag with replacement. If X be the number of white balls drawn, then (mean of Xstandard deviation of X) is equal to : |
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Answer» A bag contains 30 white balls and 10 red balls. 16 are drawn one by one randomly from the bag with replacement. If X be the number of white balls drawn, then (mean of Xstandard deviation of X) is equal to : |
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