According to Wikipedia it should be :


But I am not sure what should the values be for t and e or how it can be calculated with values substituted. Any help navigating this would be appreciated.


t is time and e is the Euler number, approximately 2.71828182845904523536028747135266249775724709369995.

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You can then use the MTTF (in the same period (month, second, year) as t) and get the reliability metric.

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