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October 21, 2014

October 21, 2014

Posted by **Jason L** on Wednesday, March 7, 2007 at 3:21pm.

If there really is a tendency for the product to fail early or not at all (or very much later), then there is no way of predicting this from the information you have been given. What you CAN predict is the probability of failure in a specific time interval if the probability of failure is uniform at all times. You would use an exponential formula

dN/dt = - kN for the number N that had not failed, and get k from the mean life, much as in a radioactive decay calculatikon

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