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Topic: Statistical mode

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In the News (Sun 23 Jun 19)

  Statistical mechanics - Wikipedia, the free encyclopedia
Statistical mechanics is the application of statistics, which includes mathematical tools for dealing with large populations, to the field of mechanics, which is concerned with the motion of particles or objects when subjected to a force.
It provides a framework for relating the microscopic properties of individual atoms and molecules to the macroscopic or bulk properties of materials that can be observed in everyday life, therefore explaining thermodynamics as a natural result of statistics and mechanics (classical and quantum) at the microscopic level.
One of the reasons however that scientists were interested in their study is that the equations governing the behaviour of a polymer chain were independent of the chain chemistry.
en.wikipedia.org /wiki/Statistical_Mechanics   (2410 words)

 Level of Measurement Encyclopedia Article @   (Site not responding. Last check: 2007-10-30)
The level of measurement of a variable in mathematics and statistics is a classification that was proposed in order to describe the nature of information contained within numbers assigned to objects and, therefore, within the variable.
According to the classification scheme, in statistics the kinds of descriptive statistics and significance tests that are appropriate depend on the level of measurement of the variables concerned.
Statistical dispersion may be measured with a variation ratio, index of qualitative variation, or via information entropy, but no notion of standard deviation exists. /encyclopedia/Level_of_measurement   (903 words)

 Everything about Measurement   (Site not responding. Last check: 2007-10-30)
As an example in the measurement of the speed of light, the quantity is now known to a high degree of precision due to modern methods, but even with those methods there is some variability in the measurement.
Statistical techniques are applied to the measurement samples to estimate the speed.
See statistical hypothesis testing for the case when the outcome is subject to random variation.
wikimiki.org /en/measurement   (12102 words)

 Attached > Computer history > The Macintosh Design Team interview in Byte
People draw characters in OR mode, a whole lot, and OR mode is about twice as fast as the other modes, so 95 percent of all characters are drawn in OR mode.
Statistical measuring of the use of the thing allows you to get much more performance on your average throughput than you can, if you don’t go back and measure.
I think we all believe that system software should be done in assembly language at this stage of the game because high-level languages can’t give you the performance and the code density that you can get out of assembly language.
www.aresluna.org /attached/computerhistory/articles/macintoshbyteinterview   (8093 words)

 Math Guide - Links to find out about Math   (Site not responding. Last check: 2007-10-30)
Lesson 1: Using Standard Deviation, part 1 - The student should have a knowledge of how the mean and standard deviation of a set of numbers is calculated using a scientific calculator.
It is preferred that they know how to get the standard deviation without using the statistical mode in the calculator.
Their insight into the uses for the standard deviation will be more complete if this is so.
www.useekufind.com /learningquest/tmath.htm   (2530 words)

 Statistical Innovations: Articles
Everitt and D. Howell, (Eds.), Encyclopedia of Statistics in Behavioral Science, 1922-1927.
chapter in American Statistical Association: 1987 Proceedings of the Social Statistics Section, Alexandria, VA, 1987.
Copyright © 2003 by Statistical Innovations, Inc., Belmont, MA All rights reserved.
www.statisticalinnovations.com /articles/articles.html   (1262 words)

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