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4) The cashier service time at the local branch of the Rivertown bank has an exponential distribution with a mean of 2.5 minutes. What is
4) The cashier service time at the local branch of the Rivertown bank has an exponential distribution with a mean of 2.5 minutes. What is the probability that the service time exceeds 3 minutes?
.3012 .6988 .4346 .5654 .0821
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