Shоw аll yоur wоrk on pаper аnd submit. Fit a second-order polynomial to the following data: x = [0 5 10 15 20] y = [12 15 24 35 48] Write down the normal equations (use the numerical values) and solve them for the coefficients. To solve the matrix you can use MATLAB/Octave. Using the result from part (a) determine the y when x = 3.0 . Find the correlation coefficient, Find the coefficients of the second-order polynomial using polyfit(). No need to submit the m-file, just write the answers on paper.