Mean Calculator
The (arithmetic) mean is the sum of the values divided by how many values there are.
The mean is the balancing point of a data set. It uses every value, so outliers pull it.
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Example problems
How this solver works
- Sum the numbers.
- Divide by n.
Formula
Arithmetic mean.
Worked examples
2+4+6+8
- 20/4
Answer: 5
Common mistakes
Forgetting a value in the sum
Count n after listing every number, including repeats.
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Frequently asked questions
Mean vs average?
In school, average usually means the arithmetic mean.