Rockwell Automation Arena Basic Edition Users Guide - Manual (Page 82)

A RENA B ASIC E DITION U SER ’ S G UIDE
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The Weibull distribution is widely used in reliability models to represent the lifetime of a
device. If a system consists of a large number of parts that fail independently, and if the
system fails when any single part fails, then the time between successive failures can be
approximated by the Weibull distribution. This distribution is also used to represent non-
negative task times that are skewed to the left. Applications