Question

The standard deviation of a set of scores is $1.6$. The variance of these scores is

• A. $0.4$
• B. $1.96$
• C. $0.04$
• D. $2.56$

Answer 1

Answer: (D)

$2.56$

Solution:

Standard deviation of a set of scores $\sigma =1.6$

So, variance i.e. ${\sigma }^2=(1.6{)}^2$

$=2.56$

Variance of these scores $=2.56$

Therefore, $D$ is the correct option.