Question

Find the probability of failure free performance of roller-bearings over a period of 104 h if the life expectancy of the bearings is defined by Weibull distribution with parameters = 10−7 = 1.5 [Hint : P(failure free performance over a period t) = P(the component does not fail in (0,t) = P(T>t)), where T is the expectancy or time to failure of the component]

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