If v is variance and sigma is standard deviation, then

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13.Statistics

normal

If $v$ is the variance and $\sigma$ is the standard deviation, then

A

$v = {\sigma ^2}$

B

${v^2} = \sigma $

C

$v = \frac{1}{\sigma }$

D

$v = \frac{1}{{{\sigma ^2}}}$

Solution

$\Rightarrow$ The standard deviation is the square root of the variance.

$\Rightarrow$ The standard deviation is expressed in the same units as the mean is, whereas the variance is expressed in squared units.

$\therefore$ If $v$ is the varimce and $\sigma$ is the standard deviation then, $v ^2=\sigma$.

Hence, this is the answer.

Standard 11

Mathematics

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