Mrs. Allen is comparing the grades of her math students in two classes. Each dot represents a student. Which statement correctly compares the data? A. Although the mean of the grades of class A is greater than the mean of the grades of class B, the variability creates too much overlap for any conclusion to be made.
B.
Class A generally has the exact same grades as class B.
C.
Class B generally has better grades than class A.
D.
Class A generally has better grades than class B.
1 answer
It is not possible to determine the correct answer without seeing the graph or having more information about the distribution of grades in each class.
9 answers