Median Absolute Deviation (MAD) Calculator

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Multiply MAD by 1.4826 to get a consistent estimator of the standard deviation for normally distributed data, or use 1.0 to keep the raw MAD.
Median Absolute Deviation (MAD)High dispersion
2.5

Median of the absolute deviations from the dataset median

Normalized MAD3.7065
Dataset Median5.5
Count (n)8
Outliers detected1
Minimum2
Maximum100
Range98
MAD2.5
Normalized MAD3.7065
Range98

MAD = 2.5000 on 8 data points.

  • The dataset median is 5.5000, and the typical spread around it is 2.5000 units (MAD).
  • The normalized MAD is 3.7065 (MAD x 1.4826), which estimates the standard deviation for normally distributed data but is far more resistant to outliers.
  • 1 value is flagged as a potential outlier - more than 3 normalized-MADs from the median. Review these points before drawing conclusions.

Next stepWith fewer than 10 data points the MAD estimate can be unstable. Collect more data if possible.

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