What colour is the square (which contains a white star) on the flag of Chile?
BLUE Gauss-Markov assumptions Best Linear Unbiased Estimator Gauss-Markov theorem Linear estimator Gauss–Markov assumptions Gauss-Markow least squares theorem Best linear unbiased estimator Gauss–Markov–Aitken theorem Gauss-Markov model Gauss-Markov-Aitken theorem Gauss markov theorem Gauss–Markov model Gauss–Markov theorem Blue (statistics)