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$\text{M.D.}=\frac{\sum\text{fd}}{\sum\text{f}}$
- ✓$\text{M.D.}=\frac{\sum\text{f}\ |\text{d}|}{\sum\text{f}}$