**This is a preview of a practice problem given to help cement the learner’s understanding of the modeling approach taught in Chapter 5. **

This practice problem uses **SpreadsheetGrader**, a proprietary simulated Excel grid that allows you to program formulas and use copy and paste keyboard shortcuts the same way you use them in Excel. REFAI is the only course that features SpreadsheetGrader.

Sign in

Please sign in to access this course.