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 weekly number of grunts and the age of the warthog (in days) are listed below. find and interpret the value of r2. round r2 to the nearest thousandth. number of grunts age (days) 81 116 59 132 30 146 35 151 54 158 31 165 53 174 8 180 11 186