Let the time between e mail messages during work hours be exponentially distributed with a mean of 25 minutes a Calculate the rate parameter b What is the probability that you do not get an e mail for more than one hour c What is the probability that you get an e mail within 10 minutes ...

a Since the mean EX equals I we compute 1EX 125 004 b The probability that you do ...

Let the time between e-mail messages during work hours be exponentially distributed with a mean of 25

Question:

Let the time between e-mail messages during work hours be exponentially distributed with a mean of 25 minutes.
a. Calculate the rate parameter λ.
b. What is the probability that you do not get an e-mail for more than one hour?
c. What is the probability that you get an e-mail within 10 minutes?