Consider the following regression model: yi=β0+β1 xi+ui.If the first four Gauss-Markov assumptions hold true,and the error term contains heteroskedasticity,then _____.
A) Var(ui|xi) =0
B) Var(ui|xi) =1
C) Var(ui|xi) = σi2
D) Var(ui|xi) =σ
Correct Answer:
Verified
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