Single Variable Calculus, Chapter 1, 1.2, Section 1.2, Problem 22

According to a recent study, the chirping rate of crickets a certain species apprears to be related to temperature as shown in the table below.


$\begin{array}{|c|c|c|c|} \hline \text{Temperature} & \text{Chirping rate} & \text{Temperature} & \text{Chirping rate}\\ (^{\circ}\rm{F}) & (\text{chirps/min}) & (^{\circ}\rm{F}) & (\text{chirps\min})\\ \hline 50 &20 &75 &140\\ 55 &46 &80 &173\\ 60 &79 &85 &198\\ 65 &91 &90 &211\\ 70 &113 && \\ \hline \end{array}$

a.) Make a scatter plot of the data




b.) Find and graph the regression line




c.) Estimate the chirping rate at $100^{\circ}$ F by using the linear model in part (b)

The chirping rate at 100$^\circ F$ is $\approx$ 260 chirps per min.