a) Find the third-order polynomial with the least-squares solution that will best approximate the data given...

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a) Find the third-order polynomial with the least-squares solution that will best approximate the data given below. b) Plot the data points and the curve of the polynomial you found on the same axis set (using MATLAB, Excel, etc.). -2 -1 1 3 y -1 2 1,5 0,5 0,1 -0,4 a) Find the third-order polynomial with the least-squares solution that will best approximate the data given below. b) Plot the data points and the curve of the polynomial you found on the same axis set (using MATLAB, Excel, etc.). -2 -1 1 3 y -1 2 1,5 0,5 0,1 -0,4