The total of ages, that's going to be five plus two plus question mark, plus question mark, plus two, this two, plus two, plus four, plus eight. We're going to divide by the number of ages. We're going to divide it by the number of ages. Well, we have six ages here. One, two, three, four, five, six. Six ages, and that's going to be equal to the mean. This is going to be equal to the mean.