And in this case, it was 6 degrees of freedom. And we also had 6 degrees of freedom. Or if we wanted to write it generally, there were m times n minus 1 degrees of freedom. And actually, for the total, we figured out we had m times n minus 1 degrees of freedom. Actually, let me just write degrees of freedom in this column right over here. In this case, the number turned out to be 8. And then just now, we calculated the sum of squares between the samples is equal to 24.