Is There a Relationship Between a Student's Grade and That

Is there a relationship between a student's grade and that same student's evaluation of the course? Here are some data that might be expected based on many studies. (A = 4, B = 3, C = 2, D = 1, F = 0). $\begin{array}{ccc} \underline{\text { Student }}& \underline{ \text { Grade} } & \underline{\text { Evaluation }}\\1 & 4 & 7 \\2 & 1 & 3 \\3 & 3 & 1 \\4 & 0 & 6 \\5 & 2 & 6 \\6 & 2 & 2 \\7 & 3 & 6\end{array}$

a. Draw a scatterplot and calculate r.
b. Write an interpretation.