And so that's an interesting question that we ask ourselves in statistics. We just don't want a measure of center like the mean. We might also want a measure of variability. And one of the more straightforward ways to think about variability is, well, on average, how far are each of the data points from the mean? And that might sound a little complicated, but we're gonna figure out what that means in a second, and not to overuse the word mean. So we wanna figure out on average how far each of these data points from the mean. And what we're about to calculate, this is called mean absolute deviation.