Arithmetic mean: Difference between revisions

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* [[Composite indices]]
* [[Composite indices]]
* [[Expected value]]
* [[Expected value]]
* [[Geometric mean]]
* [[Geometric mean]  



Revision as of 07:48, 24 October 2012

Maths. The arithmetic mean of a set of data is the simple average calculated by adding up all of the values and dividing by the total number of items. For example, the arithmetic mean of 4%, 5% and 6% is = (4% +5% +6%)/3 = 5%.

Also sometimes known as the Mean or the Expected value E[X].

Sometimes denoted by 'µ' - the Greek letter mu (or m).

See also