The median absolute deviation, often abbreviated MAD, measures the spread of observations in a dataset. It is calculated as:

MAD = median(|x_i – x_m|)

where:

• x_i: The i^th value in the dataset
• x_m: The median value in the dataset

This calculator finds the median absolute deviation for a given dataset.

Simply enter the list of the comma-separated values for the dataset, then click the “Calculate” button:

6, 7, 7, 8, 12, 14, 15, 16, 16, 19

Median Absolute Deviation (MAD): 4.0000