April 2024
Intermediate to advanced
824 pages
36h 45m
English
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Chapter 7 | Continuous Probability Distributions 245
In a busy departmental store, the arrival of customers is Poisson distrib-
uted with an average arrival rate of 1.12 per minute.
(a) What is the probability that at least 5 minutes will elapse between arrivals?
(b) What is the probability that at least 3 minutes will elapse between arrivals?
(c) What is the probability that at least 2 minutes will elapse between arrivals?
(d) What is the probability that at least 1 minute will elapse between arrivals?
Solution As per the question = 1.12 per minute. In an exponential distribution, the ex-
ponential probability density function is f(x) = e
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