Question: Figure 14.8 shows three residual plots and a normal probability plot of residuals. For each part, decide whether the graph suggests violation of one or

Figure 14.8 shows three residual plots and a normal probability plot of residuals. For each part, decide whether the graph suggests violation of one or more of the assumptions for regression inferences. Explain your answers.
Figure 14.8

-30-20-10 0 10 20 30 Residual

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