Final answer:
If a residual plot for simple linear regression shows no clumps or patterns, it suggests that the linear regression model is appropriate for the data.
Step-by-step explanation:
If a residual plot for simple linear regression shows no clumps or patterns, it suggests that the linear regression model is appropriate for the data. The absence of clumps or patterns in the residual plot indicates that the residuals are randomly scattered around the regression line, implying that the assumptions of linearity and constant variance are met. This means that the X and Y variables would be good candidates for linear regression.