College football players trying out for the NFL are given the Wonderlic standardized intelligence test. The file contains Wonderlic the averageWonderlic score of football players trying out for the NFL and the graduation rate for football players at selected schools.
a. Compute the covariance.
b. Compute the coefficient of correlation.
c. Based on (a) and (b), what conclusions can you reach about the relationship between the average Wonderlic score and graduation rate?