Question

Given a variance of 1992.8, what is the standard deviation?

about 43.13

about 43.76

about 45.20

about 44.64

Answer 1

about 44.64

Step-by-step explanation

The standard deviation is the square root of the variance.

So we can write the equation or formula;

`standard \: \: deviation = √(variance)`

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.

`standard \: \: deviation = √(1992.8)`

Take your scientific calculator and the given square root.

You should obtain:

`standard \: \: deviation = 44.64078852`

We round to the nearest hundredth to obtain; 44.64