Question: (1 point) In some cases, the best-fitting multiple regression equation is of the form y = bo + bix + b2x2 + b3x3. The graph

(1 point) In some cases, the best-fitting multiple regression equation is of the form y = bo + bix + b2x2 + b3x3. The graph of such an equation is called a cubic. Using the data set given below, and letting x1 = x, x2 = x2, and x3 = x, find the multiple regression equation for the cubic that best fits the given data. X -10 -7 -3 -1 4 7 10 y -31.9 -17.1 -7.3 -5.2 9.8 29.6 65.1 The equation is y = + x+ x2+ x 3

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