Now this numerator is going to be 1.5 over three. So this is going to be equal to, 1.5 is exactly half of three. So we could say this is equal to the square root of 1.5. This is one over the square root of two. One divided by the square root of two, which gets us to, so if we round to the nearest thousandths, it's roughly 0.707. So approximately 0.707. And if you wanted to visualize that, one standard deviation of the residuals below the line would look like this.