In the data set, what is the variance? 6, 8, 1, 9, 4

Solution:

Variance is a statistical measurement that is used to determine the spread of numbers in a data set with respect to the average value or the mean.

The standard deviation squared will give us the variance.

Here, ‘X’ represents the observations and ‘n’ represents the number of observations.

Here, n = 5

Variance = {(ΣX²/n ) - (Σx / n )²} = (198/5) - (28/5)²

= (990 - 784)/25 = 8.24

In the data set, what is the variance? 6, 8, 1, 9, 4

Summary:

The variance of the given data 6 8 1 9 4 is 8.24