Problem 1 Let :r be students1 verbal SAT score and Y he the math SAT score. From a large sample, we found that i = 480, g] = 500, s: = 80, .99. = 120, and correlation between I and y is 7' = 0.5. a} Find the slope {b} of the regression line. b} Find the yintercept (a) of the regression line. c} Based on your answers from parts a) and b}, write down the equation of least squares regression (or prediction equation). d} Find 7'2 and interpret. Problem 2: Multiple choice The slope (b) of the regression equation and the correlation {r} are similar in the sense that: they do not depend on the unit of measurement. th ' both must fall between 1 and 1. th ' both remain the same when the role of x and y are switched. they both have the same sign