11.4 Regression and correlation

Draw the graph of \(\hat{y} = 5 + 2x\) for values of \(x\) between \(0\) and \(10\).

Add some points to the scatterplot such that the correlation is approximately \(r = 0.9\).
Add some more points to the scatterplot such that the correlation is approximately \(r = 0.7\).