Question

The residual plot for a data set is shown.

Based on the residual plot, which statement best explains whether the regression line is a good model for the data set and why?


The regression line is a good model because some residuals are 0.

The regression line is not a good model because the points in the residual plot are far from the x-axis.

The regression line is a good model because the residuals approach 0 as x increases.

The regression line is not a good model because there is a pattern in the residual plot.

Answer 1

D.The regression line is not a good model because there is a pattern in the residual plot.

Explanation:

Answer 2

The regression line is not a good model because there is a pattern in the residual plot.

Explanation:

Given is a residual plot for a data set

The residual plot shows scatter plot of x and y

The plotting of points show that there is not likely to be a linear trend of relation between the two variables. It is more likely to be parabolic or exponential.

Hence the regression line cannot be a good model as they do not approach 0.

Also there is not a pattern of linear trend.

D) The regression line is not a good model because there is a pattern in the residual plot.