Find the mean of the data set
Subtract the mean from each data value
Take the absolute value of each difference
Add all the absolute differences
Divide the total by the number of data values
Use the formula: Average Deviation = Σ|x – mean| / n
Find the mean of the data set
Subtract the mean from each data value
Take the absolute value of each difference
Add all the absolute differences
Divide the total by the number of data values
Use the formula: Average Deviation = Σ|x – mean| / n