Question

by visual inspection, determine the best fitting regression model for the data plot below. a. no pattern b. exponential c. quadratic d. linear

Explanation:

A quadratic regression model has a parabolic shape. The data plot shows a curve that first increases and then decreases, which is characteristic of a quadratic (parabola - like) relationship. An exponential model would show a more rapid increase or decrease (not the case here), a linear model would be a straight - line, and there is clearly a pattern (so option A is wrong).

Answer:

C. Quadratic