Arithmetic mean: Difference between revisions
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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. | 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%. | |||
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]. | Also sometimes known as the Mean or the Expected value E[X]. | ||
Sometimes denoted by 'µ' - the Greek letter ''mu'' (or m). | Sometimes denoted by 'µ' - the Greek letter ''mu'' (or m). | ||
== See also == | == See also == | ||
Revision as of 13:56, 20 September 2014
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).
