Does the weight of a vehicle affect the gas mileage? The following random sample was collected where x = weight of a vehicle (in hundreds of pounds) and y = miles per gallon.

Does the weight of a vehicle affect the gas mileage? The following random sample was collected where x = weight of a vehicle (in hundreds of pounds) and y = miles per gallon.

If a vehicle weighs 2200 pounds (22 in hundreds), what does the least-squares line predict for themiles per gallon?