Difference between revisions of "Arithmetic Mean"
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Revision as of 17:00, 10 April 2007
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Arithmetic Mean
One of several accepted measures of central tendency, physically
analogous to center of gravity. Pertaining to a set of numbers
x 1, x2,...xn, the arithmetic mean,
usually denoted by the symbol "mean symbol", is the sum x1+x2+...+xn divided by n. Also called mean,
average, simple average .
Since the word mean is also
applied to other measures of central tendency, such as weighted
means, geometric means, harmonic means, the adjective arithmetic
is used for clarity. However, when used without further qualification,
the term mean is understood as arithmetic mean.
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
TeX
<math>\bar{x}</math> produces <math>\bar{x}</math>
<math>x_1 + x_2 + ... + x_n</math> produces <math>x_1 + x_2 + ... + x_n</math>
