Overview

renewal process


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A stochastic process concerned with the times of replacement of components that are replaced as soon as they break down. Suppose a system has a single component, which is replaced immediately when it breaks down. Suppose the jth component has a lifetime Xj. The time, Tj, at which this component breaks down is given by

The sequence T1, T2,…is a renewal process. A useful result is that, if N(t) is the number of breakdowns by time t then

P(N(t)≥n)=P(Tnt).

Subjects: Probability and Statistics.


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