Unit 2 Free response Name: 6. Predict the calories of a serving of potato chips that contains 16 grams of fat. Comment on the reliability of this prediction. 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. y = a + bx Calories versus fat in Potato chips a = 102.7 b = 5.6 r = 0.959 r2 = 0.92 7. Interpret s. n = 35 S = 4.021 1. Using the correlation coefficient, r, describe the relationship between calories per serving and fat content (grams) for popular potato chip brands? 8. Interpret the slope and y-intercept in the context of this problem. 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. 9. Based on the residual plot, does a least squares regression line (LSRL) provide an appropriate model of 4. Calculate and interpret the residual for a brand of chips that has 4.5 grams of fat and has 140 calories. this data ? Explain. Residual - OC 5. Interpret the value "R2 = 92%"