And that total squared variation to the line is 2.74, our total squared error with the line. And then the other number we figured out was the total distance from the mean. So the mean here is y is equal to 1 4th. So that's going to be right over here. So y is equal to 1 4th is going to be right over, this is 1 half, so right over here. So this is our mean y, let me draw it a little bit neater than that, this is our mean y value. This is our mean y value, or the central tendency for our y values.