Question

If the standard deviation of a population is 4.5 what would be the population variance

Answer 1

Answer:

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Answer 2

The variance of the population = 20.25

Given :

The standard deviation of a population is 4.5

To find :

The variance of the population

Concept :

For a population variance is the square of the standard deviation.

Variance = (Standard deviation)²

Solution :

Step 1 of 2 :

Write down standard deviation of the population

Here it is given that standard deviation of the population is 4.5

Step 2 of 2 :

Calculate variance of the population

We know that for a population variance is the square of the standard deviation.

Variance of the population

= (Standard deviation)²

= (4.5)²

= 20.25

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