Listed below are the heights (cm) of winning presidential candidates and their main opponents from several recent presidentialelections. Find the regression equation, letting president be the predictor (x) variable. Find the best predicted height of an opponentgiven that the president had a height of 188 cm. How close is the result to the actual opponent height of 175 cm?President 178 177 188 188 191 175 185 183 188Opponent 180 183 188 173 169 173 177 185 175The regression equation is y+Ox.(Round the y-intercept to the nearest integer as needed. Round the slope to three decimal places as needed.)

x = 178, 177, 188, 188, 191, 175, 185, 183, 188y = 180, 183, 188, 173, 169, 173, 177, 185, 175The sample size [n] = 9x = 188∑y = 180 + 183 + 188 + 173 + 169 + 173 + 177 + 185 + 175 = 1603∑x² = (178)² + (177)² + (188)² + (188)² + (191)² + (175)² + (185)² + (183)² + (188)² = 303865∑x = 178 + 177 + 188 + 188 + 191 + 175 + 185 + 183 + 188 = 1653∑xy = (178 x 180) + (177 x 183) + (188 x 188) + (188 x 173) + (191 x 169) + (175 x 173) + (185 x 177) + (183 x 185) + (188 x 175) = 294353Xmean = (178 + 177 + 188 + 188 + 191 + 175 + 185 + 183 + 188)/9 = 183.6667Ymean = (180 + 183 + 188 + 173 + 169 + 173 + 177 + 185 + 175)/9 = 178.1111|175 - 176.94| = |-1.94| = 1.94 ~ 2less than 5,The result is within 5 of the actual opponent height of 175 cm.Final answer The regression equation = 223 -0.245 x