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. So this distance squared plus this distance squared plus this distance squared plus this distance squared. That's all we just calculated on Excel. And that total squared variation to the line is 2.74, our total squared error with the line.