Twenty students were randomly selected from the most recent graduating class at a Canadian university. The number of semesters they were enrolled was calculated (mean = 9.6)
7, 8, 10, 11, 8, 6, 10, 9, 9, 8, 13, 12, 8, 11, 11, 14, 8, 7, 10, 12

-What is the standard deviation?
A)8
B)2.162
C)9.5
D)4.674
E)21.846

Question

Twenty students were randomly selected from the most recent graduating class at a Canadian university. The number of semesters they were enrolled was calculated (mean = 9.6)
7, 8, 10, 11, 8, 6, 10, 9, 9, 8, 13, 12, 8, 11, 11, 14, 8, 7, 10, 12

-What is the standard deviation?
A)8
B)2.162
C)9.5
D)4.674
E)21.846

Quizplus · Accepted Answer

The standard deviation is given as 2.162. This is the only choice that matches the given value.

Twenty Students Were Randomly Selected from the Most Recent Graduating