what is the standard deviation of the following dataset plea

what is the standard deviation of the following dataset? please include solution.
8.9 8.9 9.1 9.4 9.6 10 10.1 10.1 10.5 11 11.1 11.5 11.6 11.8 11.9 12.4 12.8 14.7 14.8 14.9 15.7 16.3 16.4 34.1 38.6

Solution

Let us use the formula for std deviation as

Variance = E(X²) - {E(x)}^2

Std dev = square root of variance

total numbers = 25

Explanation

To find standard deviation we use the following formula

?=?(xi?X