# Median Absolute Deviation

In statistics, there are mainly three types of measures of central tendency: **mean, median **and **mode**. Also, **dispersion** is an important concept in statistics which means to study the spread of the data. There are various measures of dispersion, **median absolute deviation** is one of the important topics.

Median is the value that lies in the center. Median standard deviation is defined as absolute value of deviation of each observation from the median of the data. It is the median of absolute deviation from median.

The value of median absolute deviation refers to the dispersion of data from its median.

In order to determine median absolute deviation, one needs to first calculate the median of data. Then, it is subtracted from each observation of the data and their absolute values are calculated. **On dividing the sum of these values by the total number of observations, we get the median absolute deviation of data.**