Slides - Åbo Akademi
Slides - Åbo Akademi
Slides - Åbo Akademi
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Exponential Distribution<br />
The distribution gives:<br />
• failure density: f (t) = λe −λt<br />
• reliability function: R(t) = e −λt<br />
• constant failure and repair rates: λ(t) = λ and µ(t) = µ<br />
• MTTF = 1 λ<br />
• MTTR = 1 µ<br />
The probability of a system working correctly throughout a given<br />
period of time decreases exponentially with the length of this time<br />
period.
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