Steps for Completion:

1. Make a subset of the loan dataset by using some of the following variables:

df3_1 <- df3[,c("funded_amnt","annual_inc","dti","inq_last_6mths",
                "total_acc","total_pymnt_inv")]

2. Use cor for the preceding loan data subset, and then choose two highly correlated variables in the loan dataset. Use pairs, as follows:

total_rec_prncp and total_pymnt_int
funded_amnt,total_pymnt_inv

3. Make a scatterplot for the preceding pairs for grade A, then fit a linear regression model.
4. Determine what are the correlations of the preceding pairs.

Outcome:

Answer to step 4: The correlations are as follows:

1. 93%
2. 85%