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There are 30 white balls and 10 red balls in bag. 16 balls are drawn with replacement from the bag. If be the number of white balls drawn then the value of is equal to (A) (B) (C) (D)
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Let be n observations, and let be their arithematic mean and be their variance.Statement 1: Variance of .Statement 2: Arithmetic mean of .Stuck on the question or explanation?
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Question Text | There are 30 white balls and 10 red balls in bag. 16 balls are drawn with replacement from the bag. If be the number of white balls drawn then the value of is equal to (A) (B) (C) (D) |