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The expected value of a random variable. Arithmetic average of a sample.
Copyright © 2012, Campbell R. Harvey. All Rights Reserved.

Arithmetic Mean Average

An average calculated by adding the value of the points in a data set and dividing the sum by the number of data points. For example, suppose one wishes to calculate the average income of a country with exactly five people in it, and their incomes are $25,000, $26,000, $43,000, $70,000, and $72,000. It is calculated as:

($25,000 + $26,000 + $43,000 + $70,000 + $72,000) / 5 = $47,200.

A limitation to the arithmetic mean average is that it can be overly affected by extremes in either direction. For example, if one of the five persons in the country earns $100 billion per year, the arithmetic mean average income would be in the billions and would not accurately count the other four citizens. For this reason, many analysts use the median in conjunction with the arithmetic mean average. The arithmetic mean average is also called simply the mean.
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved


The average of a set of numbers.Contrast with median,which is the middle figure in a set of numbers,and mode,which is the value that appears most often in a set of numbers.

Example: A survey of home values in a neighborhood of nine houses obtained the following values:

The mean, or average, is the total of all values divided by 9, or $143,044.The median is the middle number when the numbers are all arranged from highest to lowest,which would be house 5, or $139,850.The mode is $139,000,because it is the number that appears most often.

The Complete Real Estate Encyclopedia by Denise L. Evans, JD & O. William Evans, JD. Copyright © 2007 by The McGraw-Hill Companies, Inc.
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To see why this is so, however, we need to look at Aristotle's account of good deliberation in Nicomachean Ethics 6, and his account of a particular kind of failed deliberation, a deliberative inquiry that he describes as beginning from the right hypotheses and arriving at the right conclusion, but going through a false middle term.
When the conclusion of a syllogism is demonstrated "[phrase omitted]", says he, the middle term is the definition ([phrase omitted]) of the extreme (99a3-4).
Switching round the terms in both premises in figure 1 brings the two middle terms together (A-B/B-C).
Many of the processes which have been launched by the Mission together with its partners - Gen Scholz added will pay out in the middle term
The text continues, 'for the deduction of those [premises] where there is a middle term is by means of the middle term; but the deduction of those where there is not a middle term is by means of induction' (68b31-3).
The belt is traditionally used from the middle term of pregnancy; it contributes support, warmth, and a sense for the user of taking charge of her own pregnancy.
Aristotle is saying that no syllogism, be it dialectical or rhetorical, can establish a relationship among classes of objects or ideas unless some middle term is related to each through predication.
Their combination is manifested on the basis of a third component--called the "middle term"--which is not present in the conclusion.
To begin with, David Tabachnick and Toivo Koivukoski, the editors of the volume, deserve praise for having focused philosophical attention on what is perhaps the most sweeping and complex social issue today--globalization; and they deserve credit also for having used technology as a middle term between globalization and philosophy.
In neither language is the middle term a medial, referring to a distance somewhere in between the proximal and distal terms.
These essayists are not about cut-and-dried simplified 'models' but about the mutual forming of thought and event, linked by the middle term of action and enterprise" (251).

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