The number of years the laptop functions is exponentially distributed with mean = 5 years. If a customer purchased an old laptop which was used for last two years, what is the probability that it will function for at least 3 years?
Conditional probabilities involving the exponential distribution
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probability
probability-distributions
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0Duplicate of [Memorylessness of the Exponential Distribution](http://math.stackexchange.com/q/354480/77033) – 2014-03-11