And then I'm going to have, I'll look at that data point and that expected, and I would get 15 minus 24 squared over expected, over 24. I'm running out of colors. And then we would look at that, those two numbers, and we would say plus 25 minus 16 squared divided by expected. And then we would get, we would look at these two, plus 15 minus 12 squared over expected, over 12. And then last but not least, let me find a color I haven't used, we would look at that and that, and we would say plus five minus eight squared over expected, over eight. Now once you get that value for the chi-square statistic, the next question is what are the degrees of freedom? Now a simple rule of thumb is to just look at your data and think about the number of rows and the number of columns.