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Uniform Ratio Distribution


UniformRatioDistribution

The ratio X_1/X_2 of uniform variates X_1 and X_2 on the interval [0,1] can be found directly as

P_(X_1/X_2)(u)=int_0^1int_0^1delta((x_1)/(x_2)-u)dx_1dx_2
(1)
=1/2[(H(u-1))/(u^2)+H(1-u)],
(2)

where delta(x) is a delta function and H(x) is the Heaviside step function.

The distribution is normalized, but its mean and moments diverge.


See also

Ratio Distribution, Uniform Difference Distribution, Uniform Distribution, Uniform Product Distribution, Uniform Sum Distribution

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References

Trott, M. "The Mathematica Guidebooks Additional Material: Probability Distribution of a Quotient." http://www.mathematicaguidebooks.org/additions.shtml#S_1_12.

Referenced on Wolfram|Alpha

Uniform Ratio Distribution

Cite this as:

Weisstein, Eric W. "Uniform Ratio Distribution." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/UniformRatioDistribution.html

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