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If the Model ​ Satisfies the First Four Gauss-Markov

Question 3

Multiple Choice

If the model If the model ​ satisfies the first four Gauss-Markov assumptions, then v has: A) ​a zero mean and is correlated with only x<sub>1</sub>. B) ​a zero mean and is correlated with x<sub>1</sub> and x<sub>2</sub>. C) ​a zero mean and is correlated with only x<sub>2</sub>. D) a ​zero mean and is uncorrelated with x<sub>1</sub> and x<sub>2</sub>. ​ satisfies the first four Gauss-Markov assumptions, then v has:


A) ​a zero mean and is correlated with only x1.
B) ​a zero mean and is correlated with x1 and x2.
C) ​a zero mean and is correlated with only x2.
D) a ​zero mean and is uncorrelated with x1 and x2.

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