And then the total variation from the mean, the squared distances from the mean of the y are 22.75. So let me be very clear what this is. So let me write these numbers down. So our squared, I'll write it up here so we can keep looking at this actual graph. So our squared error versus our line, our total squared error, we just computed to be 2.74. I rounded it a little bit. And what that is, is you take each of these data points, vertical distance to the line.