Question

For a given distribution, the arithmetic mean is $10$ and the standard deviation is $8$. The coefficient of dispersion is given as

• A. $8$
• B. $80$
• C. $0.8$
• D. $1.25$

Answer 1

The correct option is C $0.8$

Mean $=10$

Standard deviation $=8$

The Karl Pearson Coefficient of dispersion is simply the ratio of the standard deviation to the mean.

$\Rightarrow$ Coefficient of dispersion $=\frac{Standarddeviation}{Mean}$

$=\frac{8}{10}$

$=0.8$