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Weibull Distribution (Two Parameter) The Weibull distribution is a special case of the Generalized Extreme Value distribution. It has been extensively used as a model of time to failure of manufactured items and has become one of the principal tools of reliability engineering. The applications of the Weibull distribution have expanded and include finance and climatology. The distribution is named after the Swedish engineer Wallodi Weibull. Profile Parameters
Range The range is from greater than zero to positive infinity. However, in practice the right tail is classed as thin/light or bounded. Functions Properties Random Number Generation Random number generation (referred to as r) for a Weibull distribution can be performed by transforming a continuous uniform variable in the range 0 to 1 (referred to as u) with the distribution's inverse probability function:
Using Basic style code, the function would be similar to:
Page Updated: 05-May-2005 |
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