Which of the following sets has the same standard deviation as the set that contains k, k + 2, and 2k?
A. k-2, -2, 0
B. 2k, 2k + 4, 4k
C. 1, 2, k
D. k, k-1, k-2
E. k/2, k, 2
[spoiler]A.[/spoiler]
Private GMAT Tutor NYC & Online
Private GMAT Tutor NYC & Online
Which of the following sets has the same standard deviation as the set that contains k, k + 2, and 2k?
A. k-2, -2, 0
B. 2k, 2k + 4, 4k
C. 1, 2, k
D. k, k-1, k-2
E. k/2, k, 2
[spoiler]A.[/spoiler]