College football players trying out for the NFL are given a standardized intelligence test. The data below contains the average score on this exam and the graduation rate for football players at 10 different schools. Use this data to complete parts (a) through (C). Test Score 29.9 26.6 26.3 25.8 24.7 20.3 18.4 18.3 17.1 16.3 Graduation % 54.8 73.6 48.6 41.1 83.4 29.4 40.1 21.2 58.2 32.4 a. Compute the covariance. (Round to three decimal places as needed.) b. Compute the coefficient of correlation. (Round to three decimal places as needed.) c. What conclusions can you reach about the relationship between test scores and graduation rate? A. There is no relationship between the variables. B. There is a weak relationship between test scores and graduation rates. Increases in scores cause relatively small increases in graduation rates. C. There is a weak linear relationship between the variables. Correlations this low can be caused by random variations. D. The covariance is too small to draw any significant conclusions