In a Study of Feeding Behavior, Zoologists Recorded the Number

Essay

In a study of feeding behavior, zoologists recorded the number of grunts of a warthog feeding by a lake in the 15 minute period following the addition of food. The data showing the number of grunts and and the age of the warthog (in days) are listed below: $$\begin{array}{l}\begin{array} { c c } \hline \text { Number of Grunts } & \text { Age (days) } \\\hline 93 & 128 \\71 & 144 \\42 & 158 \\47 & 163 \\66 & 170 \\43 & 177 \\65 & 186 \\20 & 192 \\23 & 198 \\\hline\end{array}\\\text { Find and interpret the value of } r ^ { 2 } \text {. }\end{array}$$