ESS210B
Prof. Jin-Yi Yu
Least Square Fit
q
Coefficients a and b are chosen such that the error Q is minimum:
q
q
q
This leads to:
q
q
q
q
Solve the above equations, we get the linear regression coefficients:
q
where
q
q
q
covariance between
x
and
y
variance of
x
b
=