It may be easier to calculate the mean if you rearrange the numbers first.
- 1
The first thing that should be done when finding the key features of a data set is rearranging the numbers from least to greatest.
11, - 7, - 14, 10 - 5
⇓
- 14, - 7, - 5 , 10, 11
Now, we can recall that the mean of a data set is calculated by finding the sum of all values in the set and then dividing by the number of values in the set. In this case, there are 5 values in the set.
