UGC NTA NET/JRF Exam, Environmental Sciences, June-2021

41. Among all the unbiased estimators of the population regression coefficients which are linear in the dependent variable (say Yᵢ), the least squares estimators have the smallest variance. This statement is known as:

1. A. Bayes' theorem
2. B. Central limit theorem
3. C. Chebyshev's theorem
4. D. Gauss-Markov theorem