Arithmetic mean: Difference between revisions
From ACT Wiki
Jump to navigationJump to search
imported>Doug Williamson m (Corrected Geometric mean) |
imported>Doug Williamson m (Spacing) |
||
| Line 1: | Line 1: | ||
''Maths.'' | ''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. | 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%. | ||
Revision as of 10:39, 29 July 2013
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).
