If the Variance of U Is Quadratic in X, Then $\theta _ { 0 } ^ { 2 }$

question 22

Multiple Choice

If the variance of u is quadratic in X, then it can be expressed as

• A)var(u_i|X_i)= \(\theta _ { 0 } ^ { 2 }\)
• B)var(u_i|X_i)= ?₀ + ?₁ \(x _ { i } ^ { 1 / 2 }\)
• C)var(u_i|X_i)= ?₀ + ?₁ \(x _ { i } ^ { 2 }\)
• D)var(u_i|X_i)= \(\sigma _ { \mathrm { u } } ^ { 2 }\)