Customers arrive at random times, with an exponential distribution for the time between arrivals. Currently, the mean

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Customers arrive at random times, with an exponential distribution for the time between arrivals. Currently, the mean time between customers is 6.34 minutes. 

a. Since the last customer arrived, 3 minutes have gone by. Find the meantime until the next customer arrives. 

b. Since the last customer arrived, 10 minutes have gone by. Find the meantime until the next customer arrives.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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