Given:
The variance of a distribution = 195.
To find:
The standard deviation, rounded to the nearest thousandth.
Solution:
Standard deviation of a distribution is the square root of the variance of the distribution.
Here, the standard deviation of the distribution is
[tex]S.D.=\sqrt{195}[/tex]
[tex]S.D.=13.96424[/tex]
[tex]S.D.\approx 13.964[/tex]
Therefore, the standard deviation is 13.964.