Refer to the two sets of data below: Group A: 8,14,2,4,12; Group B: 10,2,3,20, 5 . Which group has a standard deviation of 5.1?

A. neither A and B
B. both A and B
C. Group A
D. Group B

Refer to the two sets of data below: Group A: 8,14,2,4,12; Group B: 10,2,3,20, 5 . Which group is more consistent?

A. both A and B
B. Group B
C. neither A and B
D. Group A