1 another regression equation reads y 3x is that possible


1. Another regression equation reads: Y 3X. Is that possible? Explain.

2. Another regression equation reads: Y 12. State all the things that we know from this about X, Y, and/or r.

3. Section 8.4 presented an equation for predicting GPA (Y ) from SAT total score (X): Y .00125X .75.

(a) What is the regression coefficient for this equation?

(b) Interpret the regression coefficient in terms of the slope of the regression line.

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