In our situation, we have two rows and three columns, so it's going to be 2 minus 1 times 3 minus 1. So it's going to be 2 minus 1 times 3 minus 1, which is just 1 times 2, which is 2. We have two degrees of freedom. Now, the reason that that should make a little bit of intuitive sense, we'll talk about this in more depth in the future, is that if you assume that you know the totals, so let's just assume that you know the totals. So if you know all of this information over here, if you know the total information, or actually if you knew the parameters of the population as well, but if you know the total information and if you know this information, or if you know r minus 1 of the information in the rows, the last one can be figured out just by subtracting from the total. So for example, in this situation, if you know this, you can easily figure out this. This is not new information.