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A set of X and Y scores has a regression equation with a slope of b = 4. If the mean for the X values

A set of X and Y scores has a regression equation with a slope of b = 4. If the mean for the X values is MX = 2 and the mean for the Y values is MY = 6, what is the Y-intercept value (a) for the regression equation?

a.

-2

b.

-22

c.

4

d.

-4

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