Data were collected every five years on the population of the countries in the UN. The following computer output and residual plot for the power model were provided. Based on the residual plot, is the power model appropriate? Yes, the residual plot clearly displays the curve of a power function.

Yes, the residual plot very clearly displays scatter around the residual = 0.
No, the residual plot shows us that a quadratic model is appropriate.

No, the residual plot does not show random scatter around the residual = 0. answer is d