An example of a first-order model with three predictor variables is A) y = $\beta$₀ + $\beta$₁x₁ + $\beta$₂x₂ +$\beta$₃x₃ +$\varepsilon$ B) y = $\beta$₀ + $\beta$₁x₁ + $\beta$₂x₂ + $\varepsilon$ C) y = $\beta$₀ + $\beta$₁x² +$\beta$₃x₃+ $\varepsilon$ D) y² = $\beta$₀ + $\beta$₁x₁ + $\beta$₂x₂+$\beta$₃x₃ + $\varepsilon$.

Question

Quizplus · Accepted Answer

A first-order model is a linear regression model where the response variable is a linear combination of the predictor variables. Option A includes three predictor variables (x₁, x₂, x₃) in a linear form, making it a first-order model.

An Example of a First-Order Model with Three Predictor Variables β\betaβ

An Example of a First-Order Model with Three Predictor Variables $\beta$