Can we predict the number of calories in a serving of potato chips based on the fat grams per serving? The following computer output and scatterplot describe the chip brands calories per serving on the fat content (in grams} per serving of 35 popular potato chip brands. Calories versus fat in Potato chips Ian I36 I50 I85 5.... I33 1. Using the correlation coefficient, r, describe the relationship between calories per serving and fat content {grams} for popular potato chip brands? 2. Write the equation of the least-squares regression line. Define any variables used. Then 3. Find the predicted value for a brand of chips that has 4.5 grams of fat. 4. Calculate and interpret the residual for a brand of chips that has 4.5 grams of fat and has 140 calories