The mean is calculated by adding up all the numbers in a data set and then dividing that sum by the total number of values. For example, to calculate the mean of the numbers 3, 11, 4, 6, 8, 9, and 6:
- Add them together: 3 + 11 + 4 + 6 + 8 + 9 + 6 = 47
- Divide by the number of values (7): 47 / 7 = 6.7
So, the mean is 6.7. This simple step of summing all values and dividing by their count gives the average or mean value of the data set.
