Macroeconomics 10th Edition by Roger Arnold

Exercise 29

For each of the following, what type of relationship would you expect between the variables?
a. Sales of hot dogs and sales of hot dog buns
b. The price of winter coats and sales of winter coats
c. The price of personal computers and the production of personal computers
d. Sales of toothbrushes and sales of cat food
e. The number of children in a family and the number of toys in a family