The dot plots below show the number of gym members who attended two different aerobics classes over a six-week period. Each class met three times per week.
2 dot plots showing number of gym members who attendeded to different aerobic classes titled class A and Class B. X axis is labelled number of members.
The variability for each class is 4. The difference between the mean number of gym members for each class is approximately how many times the variability?
A.
5
B.
2
C.
3
D.
4
