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mean

mean in statistics, a type of average . The arithmetic mean of a group of numbers is found by dividing their sum by the number of members in the group; e.g., the sum of the seven numbers 4, 5, 6, 9, 13, 14, and 19 is 70 so their mean is 70 divided by 7, or 10. Less often used is the geometric mean (for two quantities, the square root of their product; for n quantities, the n th root of their product).

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"mean." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 25 Dec. 2009 <http://www.encyclopedia.com>.

"mean." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (December 25, 2009). http://www.encyclopedia.com/doc/1E1-mean.html

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mean

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

mean (arithmetic mean) Mathematical average. It is found by adding a group of numbers and dividing by the number of items in the group. Thus, for numbers a, b, c., and d, the mean is (a + b + c. + d)/4.

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"mean." World Encyclopedia. 2005. Retrieved December 25, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-mean.html

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mean

A Dictionary of Nursing | 2008 | Â© A Dictionary of Nursing 2008, originally published by Oxford University Press 2008. (Hide copyright information) Copyright

mean (arithmetic mean) (meen) n. the average of a group of observations calculated by adding their values and dividing by the number in the group. See also median, mode.

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"mean." A Dictionary of Nursing. Oxford University Press. 2008. Encyclopedia.com. 25 Dec. 2009 <http://www.encyclopedia.com>.

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"mean." A Dictionary of Nursing. Oxford University Press. 2008. Retrieved December 25, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-mean.html

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