To find the mean (average) of a data set:
- Add up all the values in the data set.
- Count the number of values in the data set.
- Divide the total of the values by the number of values. This gives you the mean (average).
For example, if you have the data set: {2, 4, 6, 8},
- Add up the values: 2 + 4 + 6 + 8 = 20
- There are 4 values in the data set.
- Divide the total by the number of values: 20 / 4 = 5
So the mean (average) of the data set {2, 4, 6, 8} is 5.
Related tutorial videos:
How to Find the Mean | Math with Mr. J
Math Antics - Mean, Median and Mode
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