Question
How are quartile deviation, standard deviation and mean deviation related to each other?

Answer

Relationship between different measures of dispersion:
  1. Mean Deviation= $\frac{4}{5}\ \text{S.D.}$
  2. Quartile Deviation= $\frac{2}{3}\ \text{S.D.}$
  3. Quartile Deviation= $\frac{5}{6}\ \text{S.D.}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free