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The F-Ratio Distribution


	If and are chi-squared random variables with and degrees of freedom, then the ratio follows the F-ratio (or F-distribution) with parameters and The F-distribution arises in statistical comparisons of the variability in two populations.


	Contributed by: Chris Boucher

Log Normal Distribution (Wolfram MathWorld)

"The F-Ratio Distribution" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/TheFRatioDistribution/

Contributed by: Chris Boucher

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