Mathematics, 11.10.2019 02:00 keagank
The time to failure, t, in hours, of a machine is often exponentially distributed with a probability density function f(t) = k e^(-kt), 0 to infinity, where k= 1/a and a is the average amount of time that will pass before a failure occurs. suppose that the average amount of time that will pass before a failure occurs is 80 hr. what is the probability that a failure will occur in 55 hr or less?
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