Mean deviation about the mean is the average of absolute deviations from the mean.
Key Concepts
- Concept: Definition of MAD about mean
- Concept: Absolute deviations used
- Concept: Measures data dispersion
Steps
- Action: Compute the mean
- Action: Compute |x_i – mean| for each value
- Action: Average the deviations: sum/n
Formula
$$text{MAD}_{text{mean}} = frac{1}{n} sum_{i=1}^{n} left| x_i – bar{x} right|$$