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Weibull Distribution

Weibull Distribution

The Weibull Distribution is used almost exclusively for failure analysis. The most common application is to model the waiting time to failure (life length) or between failures of a component, assuming the failure rate is a polynomial function of time. The Weibull Distribution is also used as a tolerance distribution in the analysis of quantal response data.

The Weibull Distribution is defined for all positive values of x. It has two parameters, k and lamda, both of which must be positive. In addition, k must be an integer. The distribution is:

where x>0, k=1,2,..., and lamda>0.

The equations for the mean and variance are:

Versions: DPL Professional, DPL Enterprise, DPL Portfolio

See Also

Named Distributions