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The equation of a least-squares regression line is y = 30 + 6x. (a) What is the value of y for x -2? y

The equation of a least-squares regression line is y = 30 + 6x. (a) What is the value of y for x -2? y = (b) If x increases by one unit, what is the corresponding change in y? change in y: (c) What is the intercept for this equation? intercept:

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