The numbers of regular season wins for 10 football teams in a given season are given below. Determine therange, mean,variance, and standard deviation of the population data set.

2, 10, 15, 2, 14, 7, 14, 9, 4, 9

The range is 13

(Simplify youranswer.)

The population mean is 8.6

(Simplify your answer. Round to the nearest tenth asneeded.)

The population variance is ?

(Simplify your answer. Round to the nearest tenth asneeded.)

The population standard deviation is ?

(Simplify your answer. Round to the nearest tenth asneeded.)