Dr Patel Has Two Sections of the Same Course and Gives

Multiple Choice

Dr. Patel has two sections of the same course and gives an exam. Both classes have the same mean score on the exam. However, in Class A most students scored relatively close to the mean, while in Class B many students scored either much higher or much lower than the mean. Which statement best describes the distribution of grades for the two classes?

A) Not enough information is provided to draw any conclusion regarding the standard deviation.
B) The standard deviation will be smaller for Class A than for Class B.
C) The standard deviation will be the same for the two classes.
D) The standard deviation will be larger for Class A than for Class B.