# Question

Refer to Exercise 3.45. Use a scatterplot to plot the price per roll and number of sheets per roll.

In exercise

a. Do the 24 points appear to fall on a straight line?

b. If not, is there any other relation between the two prices?

c. What factors may explain why the ratio of price per roll to number of sheets is not a constant?

In exercise

a. Do the 24 points appear to fall on a straight line?

b. If not, is there any other relation between the two prices?

c. What factors may explain why the ratio of price per roll to number of sheets is not a constant?

## Answer to relevant Questions

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