Question: Exercise 1.13.1. Rescale x3 to make its values lie between 0 and 1. Plot the data. Using least squares, fit models with p = 10

Exercise 1.13.1. Rescale x3 to make its values lie between 0 and 1. Plot the data.

Using least squares, fit models with p = 10 using polynomials and cosines. Plot the regression lines along with the data. Which family works better on these data, cosines or polynomials?

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