Two baseball coaches compare the number of runs scored by their teams in their last ten games:
Rockets
0
10
1
9
11
0
8
5
6
7
Bullets
4
3
4
1
4
11
7
6
12
5
(1) Show that the two teams have the same mean and range of runs scored.
(2) Which team's performance do you suspect is more variable over the period? Check your answer by finding the population standard deviation for each data set.
(3) Does the range or the standard deviation give a better indication of variability?