An engineer wants to determine how the weight of a car, x, affects gas mileage, y. The following data represent the weights of various cars and their miles per gallon. Car A B с 2615 3015 3305 D E Q 3650 31.8 25.8 27.4 21.9 19.4 Weight (pounds), x Miles per Gallon, y 4250 C (a) Find the least-squares regression line treating weight as the explanatory variable and miles per gallon as the response variable. Write the equation for the least-squares regression line. ý = Ex+D (Round the x coefficient to five decimal places as needed. Round the constant to one decimal place as needed.)

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A: On simplifying the above expression,we get

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A:

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A:

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A: Solution

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A:

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