Question

question #7
use the residual plot below to state what conclusion can be made about the regression equation.
residual plot

the regression equation is a bad model because there appears to be no obvious pattern.
the regression equation is a good model because there appears to be no obvious pattern.
the regression equation is a good model because there appears to be an obvious pattern.
the regression equation is a bad model because there appears to be an obvious pattern.

Explanation:

In regression analysis, a residual plot is used to assess the goodness - of - fit of a regression model. If the residual plot shows no obvious pattern (such as a curve, funnel - shape, etc.), it indicates that the linear regression model is appropriate. A good regression model has residuals that are randomly scattered around the zero - line. If there is an obvious pattern in the residual plot (e.g., a non - linear trend), it means that the regression equation does not capture all the relationships in the data, and the model is a bad fit.

Answer:

The regression equation is a good model because there appears to be no obvious pattern.