Add all the values in the data set
Count the total number of values
Divide the sum by the total number of values
Mean = Sum of observations ÷ Number of observations
Example: 2, 4, 6, 8
Sum = 20
Number of values = 4
Mean = 20 ÷ 4 = 5
Add all the values in the data set
Count the total number of values
Divide the sum by the total number of values
Mean = Sum of observations ÷ Number of observations
Example: 2, 4, 6, 8
Sum = 20
Number of values = 4
Mean = 20 ÷ 4 = 5