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: $$\begin{array} { c c } \hline \text { Number of Grunts } & \text { Age (days) } \\\hline 90 & 125 \\68 & 141 \\39 & 155 \\44 & 160 \\63 & 167 \\40 & 174 \\62 & 183 \\17 & 189 \\20 & 195 \\\hline\end{array}$$ Find and interpret the value of r.