A sample with which of these variances has a standard deviation that is greater than the variance?

A. 2.25

B. 1.75

C. 0.75

D. 1.25

Standard deviation is the square root of the variance. For the square root of a number to be greater than the number, the number must be between 0 and 1.

Hence, for the standard variation to be greater than the variance, the variance must be between 0 and 1.

Answer: C [0.75]