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. Absolute deviation. Mean absolute deviation, or if you just use the acronym MAD, MAD, for mean absolute deviation. And all we're talking about, we're gonna figure out how much do each of these points, their distance, so absolute deviation, how much do they deviate from the mean, but the absolute of it, so each of these points at two, they are one away from the mean.