Remember, we want the unbiased sample variance. We're going to divide it by 8 minus 1. So we're going to divide by 7. And so this is going to be equal to, let me give myself a little bit more real estate, the unbiased sample variance. And I could even denote it by this to make it clear that we're dividing by lowercase n minus 1 is going to be equal to, let's see, 4 minus 6 is negative 2. That squared is positive 4. So I did that one.