So let's say this is zero, one, two, three, four, five, six, and I'll go one more, seven. So we have a one, we have a one, we have another one, we have a six, and then we have a four. And we calculated that the mean is three. So we calculated that the mean is three. So the mean is three. So when we measure it by the mean, the central point or measure of that central point, which we use as the mean, well, it looks the same, but the data sets look different. And how do they look different?