The time between arrivals of buses follows anexponential distribution, with a mean of 60 minutes.a What is the probability that exactly four buses willarrive during the next 2 hours?b That at least two buses will arrive during the next 2hours?c That no buses will arrive during the next 2 hours? d A bus has just arrived. What is the probability thatit will be between 30 and 90 minutes before the next busarrives?
The time between arrivals of buses follows anexponential distribution, with a mean of 60 minutes.a What is the probability that exactly four buses willarrive during the next 2 hours?b That at least two buses will arrive during the next 2hours?c That no buses will arrive during the next 2 hours? d A bus has just arrived. What is the probability thatit will be between 30 and 90 minutes before the next busarrives?
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Question
The time between arrivals of buses follows an
exponential distribution, with a mean of 60 minutes.
a What is the probability that exactly four buses will
arrive during the next 2 hours?
b That at least two buses will arrive during the next 2
hours?
c That no buses will arrive during the next 2 hours?
d A bus has just arrived. What is the probability that
it will be between 30 and 90 minutes before the next bus
arrives?
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