Its using RStudio which is something I cant get right and it hard for me to use.

Question 2: The following data on sale price, size, and land-to-building ratio for 10 large industrial properties appeared in the paper "Using Multiple Regression Analysis in Real Estate Appraisal" (Appraisal Journal [2002]: 424-430). The data is posted on the course webpage ("appraisal data") require( mosaic) require( openintro) Appraisaldata