So So sorry, I answered so late xd
The mean can be found by adding all the numbers then dividing it by the amount of numbers
The mean for team A is about 7.7
and the mean for team B is about 7.6
So they're A.) About the same
To find the range find the biggest number then subtract it by the smallest
Team A: 12,0 ; 12 - 0 = 12
12 is the range
Team B: 12,3 ; 12 - 3 = 9
The answer is B.) much greater for conference a than for b