The file S02_12.xlsx includes data on the 50 top graduate programs in the U.S., according to a recent U.S. News & World Report survey.
a. Create a table of correlations between all of the numerical variables. Discuss which variables are highly correlated with which others.
b. The Overall score is the score schools agonize about. Create a scatter plot and corresponding correlation of each of the other variables versus Overall, with Overall always on the Y axis. What do you learn from these scatter plots?