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A linear regression equation has b = 3 and a = - 6. Whatis the predicted value of Y for X = 4? a. y-hat

A linear regression equation has b = 3 and a = - 6. Whatis the predicted value of Y for X = 4?

a. y-hat = -2
b. Cannot be determined without additional information
c. y-hat = 6
d. y-hat = -21

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