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1. Consider the bivariate model: Yi = β0+β1Xi+ui . Explain what it means for the OLS...

1. Consider the bivariate model: Yi = β0+β1Xi+ui . Explain what it means for the OLS estimator, βˆ 1, to be consistent. (You may want to draw a picture.)

2. (Circle all that applies) Which of the following regression functions is/are linear in the parameters a) Yi = β1 + β2 1 Xi b) Yi = β1 + β 3 2Xi c) Yi = β1 + β2Xi

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