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Encyclopedia > Hypoexponential distribution

The hypoexponential distribution is a generalization of Erlang distribution in the sense that the n exponential distributions may have different rates. In probability theory and statistics, the Erlang distribution is a continuous probability distribution developed by A. K. Erlang to predict waiting times in queueing systems, particularly in the case of telephone traffic engineering. ...

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2.2 Exponential, Hyper-exponential and Hypo-exponential Distributions (476 words)
An important property of the exponential distribution is the memoryless property.
is the parameter that characterizes the distribution, and
The number of parameters of a phase-type distribution depends on the number of parameters of its components.
F-distribution - Wikipedia, the free encyclopedia (263 words)
In probability theory and statistics, the F-distribution is a continuous probability distribution.
It is also known as Snedecor's F distribution or the Fisher-Snedecor distribution (after R.A. Fisher and George W. Snedecor).
The F-distribution arises frequently as the null distribution of a test statistic, especially in likelihood-ratio tests, perhaps most notably in the analysis of variance; see F-test.
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