Which of the following would best describe the situation that a second-degree polynomial regression equation would be used to model?
A) An exponential growth trend
B) A cosine function
C) A parabola
D) It depends on the number of independent variables.

Question

Quizplus · Accepted Answer

A second-degree polynomial regression equation, which is of the form $y = ax^2 + bx + c$, is used to model a parabolic trend in data. This is because the graph of a second-degree polynomial is a parabola.

Which of the Following Would Best Describe the Situation That