Asymmetry (statistical)

In statistics and theory of probability, the asymmetry of the density of probability of a random variable measures definite on the number realities. In general terms, the asymmetry of a distribution is positive if the tail of right-hand side (with high values) is longer or large, and negative if the tail of left (with low values) is longer or large.

Asymmetry is the third standardized moment, notes $\backslash \; gamma\_1$ and is defined as

$\backslash \; gamma\_1\; =\; \backslash \; frac\; \{\backslash \; mu\_3\}\; \{\backslash \; sigma^3\},\; \backslash !$

Where $\backslash \; mu\_3$ is the third central moments and $\backslash \; sigma$ is the Standard deviation (or standard deviation).

Random links:

Procaine | Fuerteventura | Makers the Swiss ones | Clitandre | County of Dickinson (Michigan) | Mer_Haggs

© 2007-2008 speedlook.com; article text available under the terms of GFDL, from fr.wikipedia.org