Use statistical language to describe the scatterplot Can we use "Animal Longevity" (average life span in years) to predict "Gestation" (average pregnancy length in days)? Consider the scatterplot below of the longevity and gestation of 21 different types of animals. Note that the Kangaroo has the shortest longevity of 5 years and the elephant has the longest longevity of 35 years. The equation of the line of best fit is rather hard to see. The equation is = - 59 + 16.3x