en.wikipedia.org/wiki/Mean

In mathematics, mean has several different definitions depending on the context.
In probability ... The arithmetic mean of a set of numbers x1, x2, ..., xn is typically
denoted by x ¯ {\display...

www.purplemath.com/modules/meanmode.htm

Explains how to compute the mean, median, mode, and range of a list of
numbers.

www.mathsisfun.com/definitions/mean.html

The mean is the average of the numbers: a calculated "central" value of a set of
numbers. To calculate: Just add up all the numbers, then divide by how many ...

www.khanacademy.org/math/on-sixth-grade-math/on-data-management-probability/on-statistics/v/mean-median-and-mode

Here we give you a set of numbers and then ask you to find the mean, median,
and mode. It's your first opportunity to practice with us!

www.ducksters.com/kidsmath/mean_median_mode_range.php

Mean - When people say "average" they usually are talking about the mean. You
can figure out the mean by adding up all the numbers in the data and then ...

www.reference.com/math/average-mean-mathematics-b2fb5e4b69989ed8

In mathematics, the “average” typically refers to the “mean value” of a set of
numbers that is found by adding all the numbers in the set and then dividing this
...

math.about.com/od/statistics/a/MeanMedian.htm

The mean, median, mode, and range are simple math calculations used in daily
life as well as ... Find the Median of: 9, 3, 44, 17, 15 (Odd amount of numbers)

www.virtualnerd.com/middle-math/probability-statistics/mean-median-mode-range/mean-data-set

To find the mean of a data set, add all the values together and divide by the ...
Doing math with paper and pencil can come in real handy, so make sure ... It's
easy to find the median if you first put the numbers in order from least to greatest.

mathforum.org/library/drmath/view/58326.html

Consider the set of numbers 80, 90, 90, 100, 85, 90. They could be math grades,
for example. The MEAN is the arithmetic average, the average ...

www.platinumgmat.com/gmat_study_guide/statistics_mean

Mean (aka Arithmetic Mean, Average) - The sum of all of the numbers in a list ...
The following is the formal mathematical formula for the arithmetic mean (a fancy
...