a) What is the range of grades? b) What is the class median c) What is the class mode? d) What is the skew? e) Show your work, what is the Mean Absolute Deviation? f) Show your work, what is the population (not sample) Variance g) Show your work, what is the population (not sample) Standard Deviation h) Show your work, what us the Coefficient of Variation 100 100 95 92 89 89 88 88 81 80 78 76 A A A A- B+ B+ B+ C+