MCQ
For a frequency distribution mean deviation from mean is computed by:
  • A
    $\text{M.D.}=\frac{\sum\text{f}}{\sum\text{f}\ |\text{d}|}$
  • B
    $\text{M.D.}=\frac{\sum\text{d}}{\sum\text{f}}$
  • C
    $\text{M.D.}=\frac{\sum\text{fd}}{\sum\text{f}}$
  • $\text{M.D.}=\frac{\sum\text{f}\ |\text{d}|}{\sum\text{f}}$

Answer

Correct option: D.
$\text{M.D.}=\frac{\sum\text{f}\ |\text{d}|}{\sum\text{f}}$
$\text{M.D.}=\frac{\sum\text{f}\ |\text{d}|}{\sum\text{f}}$

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