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edgytaehyung
18.03.2021 •
Mathematics
Help need to know how to do it
Solved
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Ответ:
Therefore, the probability is P=0.161.
Step-by-step explanation:
We know that cars arrive at a car wash randomly and independently; the probability of an arrival is the same for any two time intervals of equal length. We calculate the probability that 15 or more cars will arrive during any given hour of operation.
We know that the mean arrival rate is 10 cars per hour ⇒ λ=10.
We use the Possion formula:
we get
Therefore, the probability is P=0.161.