For Exercises 1.1 to 1.3, see page 3; for 1.4, see page 5; and for 1.5, see page 6.
1.1 How much is the discount worth?
Refer to Example 1.1. Add another column to the spreadsheet that gives the value of the coupon. Explain how you computed the entries in this column. Does the new column contain values for a categorical variable or for a quantitative variable? Explain your answer.
1.1
The value of the coupon is computed by subtracting the DiscPrice from the RegPrice. It is quantitative because arithmetic operations, like the average value, would make sense.
coupons