To calculate mean deviation about mean for ungrouped data start by finding the mean of your data set by adding all of the data points together and then dividing by the total number of points. Median middle value 22. Step 3 - Gives the output as number of observations n.
N Number of observations.
Step i The measure of central tendency about which mean deviation is to be found out is calculated. Here we will be studying methods to calculate range and mean deviation for individual series distribution. To calculate mean deviation about mean for ungrouped data start by finding the mean of your data set by adding all of the data points together and then dividing by the total number of points. Finding mean of the ungrouped data in array.