Reconsider Problem 2.16. Now using the data on the Clean Data worksheet tab, explore the data quantitatively by evaluating the summary statistics as follows.

a. For each column of numerical data (Annual Income, Credit Score, Late Payments, Default 0/1) in the dataset, calculate the mean, median, standard deviation, minimum, and maximum.

b. Create a correlation table showing the correlation coefficient between each pair of the following four variables: Annual Income, Credit Score, Late Payments, Default 0/1. The table should be a 4-by-4 table with the lower diagonal filled similar to Figure 2.10.