So for the variation within the groups, we had our sum of squares within. And there we got 6. And then the balance of this 30, there's no units here, the balance of this variation came from variation between the groups. And we actually calculated it and we got 24. What I want to do in this video is actually use this type of information, essentially these statistics we've calculated, to do some inferential statistics, to come to some type of conclusion, or maybe not to come to some type of conclusion. And what I want to do is just to put some context around these groups. We've just been dealing with them in the abstract right now.