Question: X = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20] Y = [-93

X = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20] Y = [-93 220 -8 -94 327 456 312 318 608 954 1378 1609 2248 2850 3236 3905 4811 5741 6821 8004] a. Use polyfit and polyval to find the best fit for X and Y. The best fit might be a higher degree polynomial. Plot both the original X and Y and the fitted ones on top of each other. b. Use the curvefitting toolbox (fit command) to find the best fit.

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