d. Reduce the number of predictors: I. Fit a multiple linear regression model to the median house price (MEDV) as a function of all other variables II. Which predictors are likely to be measuring the same thing among the 13 predictors? Discuss the relationships among INDUS, NOX, and TAX. 53 III. Reduce the number of predictors using any method of your choice. Justify your choice, and explain why each variable is being removed