The Regression Equation · Exercise 4

A random sample of ten professional athletes produced the following data where x is the number of endorsements the player has and y is the amount of money made (in millions of dollars).

$$\begin{array}{cccc}\text{x}& \text{y}& \text{x}& \text{y}\\ \text{0}& \text{2}& \text{5}& \text{12}\\ \text{3}& \text{8}& \text{4}& \text{9}\\ \text{2}& \text{7}& \text{3}& \text{9}\\ \text{1}& \text{3}& \text{0}& \text{3}\\ \text{5}& \text{13}& \text{4}& \text{10}\end{array}$$

What is the slope of the line of best fit? What does it represent?

OpenStax, Introductory Statistics 2e · §12.3 The Regression Equation · Exercise 4