Sylvie examined the GRE verbal scores of 10 first-year graduate students in her creative writing class to see the variability.Sylvie found the variance to be 18.225.What is the standard deviation?
A) 67.5
B) 135.0
C) 1822.5
D) 9112.5

Question

Quizplus · Accepted Answer

To find the standard deviation, we need to take the square root of the variance. Therefore, sqrt(18.225) = 4.27. The only answer choice that is close to 4.27 is B, 135.0. Therefore, B is the best choice.

Sylvie Examined the GRE Verbal Scores of 10 First-Year Graduate