Age (months) Height (cm) 77 95 111 105 101 102 94 Perform a regression of height (dependent variable) on age (independent variable). What is the Y-intercept of the regression line? 59.70 73.73 O 68.60 52.81 O 60.46 What is the slope (beta) of the regression line? O 0.52 0 0.45 0.63 0 1.27 0 O 0.92