SOLUTION: Length of cell phone calls is exponetially distributed with a mean of 2 minutes. Find the probability that a randomly selected call is less than three minutes long. Give your a

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Question 912453: Length of cell phone calls is exponetially distributed with a mean of 2 minutes.
Find the probability that a randomly selected call is less than three minutes long. Give your answer accurate to three decimal places.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Poisson Distribution
P(x < 3) = poisoncdf(2,2)