An Example of a Quadratic Regression Model Is A $Y _ { i } = \beta _ { 0 } + \beta _ { 1 } X + \beta _ { 2 } Y ^ { 2 } + u _ { i }$

Short Answer

An example of a quadratic regression model is a. $Y _ { i } = \beta _ { 0 } + \beta _ { 1 } X + \beta _ { 2 } Y ^ { 2 } + u _ { i }$ .
b. $Y _ { i } = \beta _ { 0 } + \beta _ { 1 } \ln ( X ) + u _ { i }$ .
c. $Y _ { i } = \beta _ { 0 } + \beta _ { 1 } X + \beta _ { 2 } X ^ { 2 } + u _ { i }$ .
d. $Y _ { i } ^ { 2 } = \beta _ { 0 } + \beta _ { 1 } X + u _ { i }$ .