KnowraGauss–Markov theoremLinked fromLinked fromThe 4 pages that link to Gauss–Markov theorem, each with the reason it gives.All 4Related 4Least squaresRelated: It formalizes a key optimality claim for least-squares regression.Linear regressionRelated: It explains when least-squares coefficients have an optimality guarantee.Ordinary least squaresRelated: It explains when OLS has minimum variance among linear unbiased estimators.Sum of squaresRelated: It explains an optimality property of the estimator produced by minimizing residual squares.