Mathematics, 15.10.2019 21:10 jaxondbagley

The time between the arrival of electronic messages at your computer is exponentially distributed with a mean of four hours.
(a) what is the probability that you do not receive a message during a two-hour period? (round your answer to 3 decimal places.)
(b) if you have not had a message in the last four hours, what is the probability that you do not receive a message in the next two hours? (round your answer to 3 decimal places.)

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