What is Mean Deviation from Median?
Mean Deviation of a series can be defined as the arithmetic average of the deviations of various items from a measure of central tendency (mean, median, or mode). Mean Deviation is also known as the First Moment of Dispersion or Average Deviation. Mean Deviation is based on all the items of the series. Theoretically, the mean deviation can be calculated by taking deviations from any of the three averages. But in actual practice, the mean deviation is calculated either from mean or median. While calculating deviations from the selected average, the signs (+ or -) of deviations are ignored and are taken as positive.
Table of Content
- Mean Deviation from Median in Case of Individual Series
- Mean Deviation from Median in Case of Discrete Series
- Mean Deviation from Median in Case of Continuous Series
Coefficient of Mean Deviation
Mean Deviation is an absolute measure of dispersion. In order to transform it into a relative measure, it is divided by the average, from which it has been calculated. It is known as the Coefficient of Mean Deviation.
Coefficient of Mean Deviation from Median (MDMe) =