Exercise 3 Page 191

Let's begin by creating our scatter plot.

Now we can use a graphing calculator or computer to conduct a linear regression analysis. We get the following results.

This allows us to write an equation for the line of best fit. y=3.27463x+24.9836 We can include this on our graph.

To estimate the temperature when the average number of chirps is 19 per second, we can substitute x=19 into our equation.

This means that the temperature should be around 87.2^(∘)F when there are 19 chirps per second.