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Computing a Least-Squares Regression Line and Interpreting Its Slope The table shows students' scores on two papers Let x represent the paper 1 score (out of 40) and y represent the predicted paper 2 score (out of 100) Which correctly states the equation for the least- Paper 1 Paper 2 squares regression line and the interpretation of its 38 slope? 95 25 65 O y = 5.2 + 2 2x, scoring 1 more point on paper 1 is associated with a 2.2-point increase on paper 2 32 77 O y = 5.2 + 2.2x; scoring 2.2 more points on paper 1 40 92 is associated with a 1-point increase on paper 2. 21 48 O y = 2.2 + 5.2x, scoring 1 more point on paper 1 is associated with a 5.2-point increase on paper 2. 35 85 O y = 2.2 + 5.2x, scoring 5.2 more points on paper 1 33 67 is associated with a 1-point increase on paper 2. 28 73