Engineered Software

Continuous Distributions


Weibull

Normal

Lognormal

Exponential

Exam

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Statistical distributions fall into two categories; modeling distributions and sampling distributions. Modeling distributions are used to describe data sets, and are divided into two classes; continuous distributions and discrete distributions. Sampling distributions are used to construct confidence intervals and test hypotheses. This section discusses the Weibull, normal, lognormal and exponential distributions.