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QUESTION 15 The speed x (in mph) of a car and the related average miles per...

QUESTION 15

  1. The speed x (in mph) of a car and the related average miles per gallon y for each speed x are given. Find the quadratic regression model that best fits the following data: (30, 18), (40, 23), (50, 28), (60, 29), (70, 25)

    Round all calculations to two decimal places.

    none of these

    Y(x) = -.02x2 - 2.80x + 22.00

    Y(x) = -.02x2 + 2.00x - 22.00

    Y(x) = -.02x 2 + 1.77x - 21.54
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