The numbers of regular season wins for 10 football teams in

The numbers of regular season wins for 10 football teams in a given season are given below. Determine the range, mean, variance, and standared deviation of the population data set. 2,10,15,2,15,8,15,9,4,9

Solution

Range =   Maximum - Minimum = 15 - 2 = 13
Mean =    sum of all the values/ total of values = (2+10+15+2+15+8+15+9+4+9)/10 = 8.9
Standard deviation =    4.825971405
Variance =    23.29

2
10
15
2
15
8
15
9
4
9