At the end of the school year, Mr. Jeffrey
compared his students grades from first
semester and second semester. He found that
the second semester grades had a lower mean
absolute deviation. What can we conclude?
A. The first semester grades were more
spread out than the second semester
grades.
B. The first semester grades were less
spread out than the second semester
grades.
C. The second semester grades were lower
than the first semester grades.
D. The first semester grades were lower than
the second semester grades.
