The sums have been evaluated. Solve the simplified system for a, b, and c to find the least squares regression parabola for the points. Use a graphing utility to confirm the result. (Note: The symbol is used to denote a sum of the terms of a sequence. You will learn how to use this notation in Section 11.1.)
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4c + 9b + 29a = 20 9с + 29b + 99и 3D 70 29c + 99b + 353a 254 12+ 10 (4, 12) (3, 6) (0, 0) (2, 2) -X- -8-6-4-2 2 4 6 8