ANSWER
about 44.64
EXPLANATION
The standard deviation is the square root of the variance.
So we can write the equation or formula;
[tex]standard \: \: deviation = \sqrt{variance} [/tex]
From the question, it was given that, the variance is 1992.8
To find the standard deviation, we plug in the given value of the variance.
[tex]standard \: \: deviation = \sqrt{1992.8} [/tex]
Take your scientific calculator and the given square root.
You should obtain:
[tex]standard \: \: deviation = 44.64078852[/tex]
We round to the nearest hundredth to obtain; 44.64