Look up: variance

1. 
   Variance
   A measure of dispersion of a set of data points around their mean value. The mathematical expectation of the squared deviations from the mean. The square root of the variance is the standard deviation.
   Found on http://www.nytimes.com/library/financial
   
   
2. 
   Variance
   Government permission for a delay or exception in the application of a given law, ordinance, or regulation.
   Found on http://www.epa.gov/OCEPAterms/
   
   
3. 
   Variance
   Is a measure of volatility, risk, or statistical dispersion. It is the square of the standard deviation.
   Found on http://www.oasismanagement.com/glossary/
   
   
4. 
   Variance
   A measure of dispersion expressed in terms of squared average deviations as opposed to the original units from some measure of central tendency such as the mean.
   Found on http://www.bized.co.uk/cgi-bin/glossaryd
   
   
5. 
   Variance
   The amount actual time, real costs or final R & D results deviate from the values anticipated in a plan. Also in statistics the variance of set of n measurements x1, x2, ..., xn is the average of the squares of the deviations of the measurements about their mean.
   Found on http://www.pestmanagement.co.uk/lib/glos
   
   
6. 
   Variance
   A measure of dispersion of returns on investments based on deviations from the average or mean value.
   Found on http://www.skandia.co.uk/glossary/index.
   
   
7. 
   variance
   [n] - the second moment around the mean
   Found on http://www.webdictionary.co.uk/definitio
   
   
8. 
   Variance
   Variance:
   Found on http://www.bplans.co.uk/glossary/index.c
   
   
9. 
   Variance
   A summary value indicating the amount of variation within the data. See also Standard deviation.
   Found on http://www.conceptstew.co.uk/PAGES/s4t_g
   
   
10. 
    Variance
    The difference between budgeted and actual... <a target=_blank href='http://www.finance-glossary.com/terms/variance.htm?id=1515&ginPtrCode=00000&PopupMode=false' title='Read full definition of variance'>more</a>
    Found on http://www.finance-glossary.com/pages/ho
    
    
11. 
    Variance
    A measure of how much a set of numbers, known or future possibilities, varies...more on Variance
    Found on http://moneyterms.co.uk/s/
    
    
12. 
    Variance
    The square of the difference from the mean for each data value, summed and dividedby one less than the number of values. An expression of the so-called 'second moment'which describes the variability around the mean. The square root of the variance is thestandard deviation.for the data series: x₁, x₂, x₃,....,x_{N...
    Found on http://www.diracdelta.co.uk/science/sour}
    
    
13. 
    Variance
    A measure of dispersion or variability (spread), calculated by squaring the value of the standard deviation.
    Found on http://www.bath.ac.uk/e-learning/gold/gl
    
    
14. 
    variance
    the (population) variance of a random variable is a non-negative number which gives an idea of how widely spread the values of the random variable are likely to be; the larger the variance, the more scattered the observations on average Category: Statistics • a measure of dispersion of a set of data points around their mean value Category: Financial affairs - taxation - customs ...
    Found on http://www.mijnwoordenboek.nl/definition
    
    
15. 
    Variance
    Government permission for a delay or exception in the application of a given act, guideline or regulation.
    Found on http://www.dlservicesinc.com/Terminology
    
    
16. 
    Variance
    Definition (keystage 4) A measure of spread of a distribution. It is equal to the mean of the squared distance of the variable from its mean: <br /> Var ( x ) = 1 n ∑ x ( x - x ¯ ) 2 , <br /> where n is the number of possible values of x, and x ¯ means the mean of x. <br /> It is often written σ 2 , whe ...
    Found on http://thesaurus.maths.org/mmkb/entry.ht
    
    
17. 
    Variance
    Definition (undergraduate level) A random variable X has variance <br /> var X = E ( X - E X ) 2 = E X 2 - ( E X ) 2 . <br /> <br /> The standard deviation of X is + var X . <br /> See also covariance.
    Found on http://thesaurus.maths.org/mmkb/entry.ht
    
    
18. 
    Variance
    Va'ri·ance noun [ Latin variantia .] 1. The quality or state of being variant; change of condition; variation. 2. Difference that produce dispute or controversy; disagreement; dissension; discord; dispute; quarrel. « That which is the strength of their amity shall prove the immediate author of their variance .» Shak. 3. (Law) A disa ...
    Found on http://www.encyclo.co.uk/webster/V/7
    
    
19. 
    variance
    1. The state of being variable, different, divergent, or deviate; a degree of deviation. ... 2. A measure of the variation shown by a set of observations, defined as the sum of squares of deviations from the mean, divided by the number of degrees of freedom in the set of observations. ... (05 Mar 2000) ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
20. 
    variance
    noun the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
21. 
    Variance
    In probability theory and statistics, the `variance` of a random variable, probability distribution, or sample is one measure of statistical dispersion, averaging the squared distance of its possible values from the expected value. Whereas the mean is a way to describe the location of a distribution, the variance is a way to capture its scale or degree of being spread out. The unit of variance is the square of the unit of the original variable. T...
    Found on http://en.wikipedia.org/wiki/Variance
    
    
22. 
    variance
    The variance of a distribution is the average of squares of the distances from the values drawn from the mean of the distribution: var(x) = E[(x-Ex)²]. Also called 'centered second moment.' Nick Cox attributes the term to R.A. Fisher, 1918. Contexts: econometrics; statistics
    Found on http://www.econterms.com/glossary.cgi?qu
    
    
23. 
    variance
    (var´e-әns) a measure of the variation shown by a set of observations; the average of the squared deviations from the mean; it is the square of the standard deviation.
    Found on http://www.mercksource.com/pp/us/cns/cns
    
    
24. 
    Variance
    • (n.) The quality or state of being variant; change of condition; variation. • (n.) A disagreement or difference between two parts of the same legal proceeding, which, to be effectual, ought to agree, -- as between the writ and the declaration, or between the allegation and the proof. • (n.) Difference that produce dispute or contro...
    Found on http://thinkexist.com/dictionary/meaning
    
    
25. 
    variance
    in statistics, the square of the standard deviation of a sample or set of data, used procedurally to analyze the factors that may influence the ... [4 related articles]
    Found on http://www.britannica.com/eb/a-z/v/8