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Source: E-GMAT
Arrange the following sets in the order of the increasing magnitude of their mean to standard deviation ratio.
I.{50, 60, 70, 80}
II .{35, 40, 45, 50}
III.{90, 110, 130, 150}
A. I < II < III
B. II < III < I
C. II < I < III
D. III < I < II
E. III < II < I
The OA is D
Arrange the following sets in the order of the increasing magnitude of their mean to standard deviation ratio.
I.{50, 60, 70, 80}
II .{35, 40, 45, 50}
III.{90, 110, 130, 150}
A. I < II < III
B. II < III < I
C. II < I < III
D. III < I < II
E. III < II < I
The OA is D