The accompanying Gradebook spreadsheet contains a partially completed spreadsheet model for computing and summarizing the grades for a class. Complete the spreadsheet model by entering and copying the formulas in the appropriate cells. Cell range H4:H17 should contain the course number grades using the grades from exams and homework assignments and the grade allocation in row 22. Cell range 14:117 should contain the course letter grades based on the grading criteria in cell range K4:18. Rows 19, 20, and 21 should contain the average, maximum, and minimum exam, homework, and course number grades. You should only enter each formula once and copy the formulas to other cells Click here for the Excel Data File a. Is this a deterministic or stochastic model? Is this a deterministic or stochastic model?