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In any discrete series (when all values are not same) if x represents mean deviation about mean and y represents standard deviation, then which one of the following is correct?

Options

  1. Ay x
  2. By x
  3. Cx=y
  4. Dx y

Correct answer

D. x y

Step-by-step solution

aligned & x= M.D., y= S.D. & M.D. = 4 5 S.D. x y aligned

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