1. Of the four residual plots, which one shows the strongest linear correlation? Explain why.
2. Of the four residual plots, which one shows data that might be modeled better with a curve than with a line? Explain why.
3. Of the four residual plots, which one shows data that alternates consistently? Explain why.
4. Of the four residual plots, which one shows data that fits a linear model well at the beginning, but not at the end? Explain why.