1 pt For each of the given the data sets below calculate the

(1 pt) For each of the given the data sets below, calculate the mean and standard deviation.

Given data set: -9,-1,-4,20,6

Sum of values = 12

Mean = sum/number of data=points = 12/5=2.4

Differerence from mean = -9-2.4, -1-2.4, -4-2.4, 20-2.4, 6-2.4

That is -11.4, -3.4, -6.4, 17.6, 3.6

Sum of squares of differences = 505.2

Average sum of squares = 101.04

Standard deviation = Square root of average sum of squares = 10.05