G is the frequency of the median group. For a normal distribution the mode mean median have the same value since Mode is a normal distribution. If there is an even number of data then median will be the mean of the two central numbers.
This example has one mode unimodal and the mode is the same as the mean and median.
Large MDfracsum f left X-overlineX right sum f When the mean deviation is calculated about the median the formula becomes. Having all three will give you a more complete picture. Mean median and mode reveal different aspects of your data. For frequency distribution the mean deviation is given by.
