Experimentally the following data are obtained: x y 280 253 276 232 220 200 132 136 Using the method of least squares adjust the function. Indicate the equations in matrix form and the values of the...

Experimentally the following data are obtained:

Using the method of least squares adjust the function. Indicate the equations in matrix form and the values of the determinants of each matrix. Calculate with those values A and B and the correlation coefficient r.