Mean Calculator
MathCalculate the arithmetic mean (average) of five numbers.
Arithmetic Mean
The arithmetic mean (average), the sum of all values divided by how many there are.
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Frequently Asked Questions
What is the arithmetic mean?
The arithmetic mean, commonly called the average, is the sum of a set of values divided by how many values there are.
When is the arithmetic mean not the best measure?
It can be skewed heavily by extreme outliers. For rates and ratios, the harmonic mean is often more appropriate; for data that grows multiplicatively (like investment returns), the geometric mean is often better.
What if I have fewer than 5 numbers?
Enter 0 for any unused values only if 0 is meant to be part of the actual dataset. Otherwise, repeat one of your real values in place of an unused field only if it doesn't change the intended average, or use this calculator for exactly 5 real values.
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