- mean
- A statistical
*measurement*of central tendency or*average*of a set of values, usually assumed to be the arithmetic m. unless otherwise specified. [M.E., mene fr. O.Fr., fr. L. medianus, in the*middle*]-**arithmetic m.**the m. calculated by adding a set of values and then dividing the sum by the*number*of values.-**geometric m.**the m. calculated as the antilogarithm of the arithmetic m. of the logarithms of the individual values; it can also be calculated as the nth*root*of the*product*of*n*values.-the m. calculated as the*harmonic*m.*number*of values being averaged, divided by the sum of their reciprocals.-if, for a symmetrical*regression*of the m.*population*with a single*mode*, a*measurement*, selected because it is extreme, is repeated, on*average*the second*reading*will be closer to the m. than the first.-(SEM) a statistical*standard**error*of the m.*index*of the*probability*that a given*sample*m. is representative of the m. of the*population*from which the*sample*was drawn.* * *

__n.__the average of a group of observations calculated by adding their values and dividing by the number in the group. When one or more observations are substantially different from the rest, which can influence the arithmetic mean unduly, it is preferable to use the geometric mean (a similar calculation based on the logarithmic values of the observations) or - more commonly - the median (the middle observation of the series arranged in ascending order). A further method of obtaining an average value of a group is to identify the mode - the observation (or group of observations when these occur as a continuous quantitative variable) that occurs most often in the series.* * *

(mēn) [Old Fr.*meien,*from L.*medianus*middle] 1. an average; a number that in some sense represents the central value of a set of numbers. 2. arithmetic m. 3. in probability and statistics, the expected value (mathematical expectation) of a random variable, the limiting value to which the sample mean converges as the sample size is increased indefinitely (if the limit exists).

*Medical dictionary.
2011.*

**Synonyms**:

### Look at other dictionaries:

**Mean**— Mean, a. [OE. mene, OF. meiien, F. moyen, fr. L. medianus that is in the middle, fr. medius; akin to E. mid. See {Mid}.] 1. Occupying a middle position; middle; being about midway between extremes. [1913 Webster] Being of middle age and a mean… … The Collaborative International Dictionary of English**Mean**— «Mean» Sencillo de Taylor Swift del álbum Speak Now Publicación 31 de marzo, 2011 Grabación 2010 Género(s) Country pop Duración 3:58 … Wikipedia Español**mean#**— mean adj Mean, ignoble, abject, sordid can all be applied to persons, their behavior, or the conditions in which they live with the meaning so low as to be out of keeping with human dignity or generally acceptable standards of human life or… … New Dictionary of Synonyms**Mean**— Mean, n. 1. That which is mean, or intermediate, between two extremes of place, time, or number; the middle point or place; middle rate or degree; mediocrity; medium; absence of extremes or excess; moderation; measure. [1913 Webster] But to speak … The Collaborative International Dictionary of English**mean**— mean1 [mēn] vt. meant [ment] meaning [ME menen < OE mænan, to mean, tell, complain, akin to Ger meinen, to have in mind, have as opinion < IE base * meino , opinion, intent > OIr mian, wish, desire] 1. to have in mind; intend; purpose… … English World dictionary**Mean**— (m[=e]n), a. [Compar. {Meaner} (m[=e]n [ e]r); superl. {Meanest}.] [OE. mene, AS. m[=ae]ne wicked; akin to m[=a]n, a., wicked, n., wickedness, OS. m[=e]n wickedness, OHG. mein, G. meineid perjury, Icel. mein harm, hurt, and perh. to AS.… … The Collaborative International Dictionary of English**mean**— 1. In the meaning ‘to intend’, mean can be followed by a to infinitive (when the speaker intends to do something: I meant to go), by an object + to infinitive (when the speaker intends someone else to do something: I meant you to go) and, more… … Modern English usage**Méan**— (homonymie) Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. France Méan est une ancienne commune française de la Loire Atlantique, aujourd hui intégrée à Saint Nazaire … Wikipédia en Français**mean**— Ⅰ. mean [1] ► VERB (past and past part. meant) 1) intend to express or refer to. 2) (of a word) have as its explanation in the same language or its equivalent in another language. 3) intend to occur or be the case. 4) have as a consequence. 5) … English terms dictionary**Mean**— (m[=e]n), v. t. [imp. & p. p. {Meant} (m[e^]nt); p. pr. & vb. n. {Meaning}.] [OE. menen, AS. m[=ae]nan to recite, tell, intend, wish; akin to OS. m[=e]nian to have in mind, mean, D. meenen, G. meinen, OHG. meinan, Icel. meina, Sw. mena, Dan. mene … The Collaborative International Dictionary of English**mean**— [adj1] ungenerous close, greedy, mercenary, mingy, miserly, niggard, parsimonious, penny pinching*, penurious, rapacious, scrimpy, selfish, stingy, tight, tight fisted*; concept 334 Ant. generous, kind, unselfish mean [adj2] hostile, rude bad… … New thesaurus