Sample Statistics

The Sample Median Absolute Deviation

The Problem

The median absolute deviation (MAD) is another measure of variability. As it uses the median, it tends to be more resistent to outliers than measures of spread using the mean (like the variance). To illustrate calculating the median absolute deviation, assume that you collected the following 4 data values:

30, 41, 37, 92

Calculate the median absolute deviation of this sample.