A test was given to two sections of a course. The results were:
Section I:
Mean: 51; Standard Deviation: 7
Section II:
Mean: 51; Standard deviation: 13
Which of the following conclusions is correct?
A) Section I did better on the test than Section II.
B) Section I is more homogeneous than Section II.
C) Section I has more bright students than Section II.
D) The students in Section I performed less consistently than those in Section II.

Question

Quizplus · Accepted Answer

Section I is more homogeneous than Section II because it has a lower standard deviation, indicating that the scores are closer to the mean and thus more similar to each other.

A Test Was Given to Two Sections of a Course