Question: Find the least squares polynomials of degrees 1, 2, and 3 for the data in the following table. Compute the error E in each case.

Find the least squares polynomials of degrees 1, 2, and 3 for the data in the following table. Compute the error E in each case. Graph the data and the polynomials.

xi 1.0 1.1 1.3 1.5 1.9 2.1 y 184 1.96 2.21 245 2.94 3.18

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