Mr. Miller is comparing his 1st period test scores with his 2nd period test scores. The mean absolute deviation for each class period is shown below. Which is a correct conclusion from the data? * A. Mr. Miller’s first period test scores had more variability than his second period.

B. Mr. Miller’s second period test scores had more variability than his first period.

C. Mr. Miller’s first period class scored higher on their test scores overall.

D. Mr. Miller’s second period class scored higher on their test scores overall.