The number of telephone calls that pass through a switchboard has a Poisson distribution with mean equal to 2 per minute. (a) What is the expected number of phone calls that pass through the switchboard in one minute? (b) What is the probability that no telephone calls pass through the switchboard in two minutes? (c) What is the probability that no telephone calls pass through the switchboard in two consecutive minutes?
The number of telephone calls that pass through a switchboard has a Poisson distribution with mean equal to 2 per minute. (a) What is the expected number of phone calls that pass through the switchboard in one minute? (b) What is the probability that no telephone calls pass through the switchboard in two minutes? (c) What is the probability that no telephone calls pass through the switchboard in two consecutive minutes?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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The number of telephone calls that pass through a switchboard has a Poisson distribution with
mean equal to 2 per minute.
(a) What is the expected number of phone calls that pass through the switchboard in one minute?
(b) What is the probability that no telephone calls pass through the switchboard in two minutes?
(c) What is the probability that no telephone calls pass through the switchboard in two
consecutive minutes?
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