Question: Graphical bonus question: Redo Exercise 8 without centering the variables. Use the results, in combination with the modelPredictions() function, to create prediction lines for PREP

Graphical bonus question: Redo Exercise 8 without centering the variables. Use the results, in combination with the modelPredictions() function, to create prediction lines for PREP versus RTEN, with FAMI held constant at two different values—one stan‑

dard deviation above the mean and one standard deviation below the mean.

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