statistics

HW Score: 63.93%, 12.79 of 20 points Part 1 of 4 O Points: 0 of 1 Save The volume (in cubic feet) of a black cherry tree can be modeled by the equation y = - 51.2 + 0.3x, + 4 9x2, where x, is the tree's height (in feet) and x, is the tree's diameter (in inches). Use the multiple regression equation to predict the y-values for the values of the independent variables. (a) X1 = 71, x, = 8.8 (b) x = 67, x = 11.6 (c) x1 = 83, x2 = 16.9 (d) x =92, X2 = 19.6 (a) The predicted volume is |cubic feet. (Round to one decimal place as needed.)