Use the scatterplot and information to answer the following questions. Total Length vs. Head Length for 104 Possums 100 - 95 - Head Length (cm) 90 85 - 75 80 85 90 95 Total Length (cm) R was used to determine the least-squares regression line that describes the relationship between total length in centimeters and head length in centimeters for a sample of possums. The equation is y = 42.71 + 0.57x where y is the predicted head length (cm) and a is the total length (cm)