Suppose that the amount of time one spends in the bank is exponentially distributed with mean 10 minutes. What is the probability the customer will spend more than 15 minutes in the bank given he is still in the bank after 10 minutes.
Added by Hannah S.
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We know that the time spent in the bank is exponentially distributed with a mean of 10 minutes. This means that the rate parameter, λ, is equal to 1/10. Show more…
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