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. \( \frac{k}{2}, k, 2 \)
Show the answer
Correct Answer: A.
GMAT Question of the Day – PS – Standard Deviation
