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janiya73
20.08.2019 •
Mathematics
Customers leaving a subway station can exit through any one of three gates. assuming that any particular customer is equally likely to select any one of the three gates, find the probability that among a sample of 4 customers, they all exit through the same gate.
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Ответ:
0.0123
Step-by-step explanation:
Given : Customers leaving a subway station can exit through any one of three gates.
The probability of selecting any particular gate =![\dfrac{1}{3}](/tpl/images/0180/3081/fd93e.png)
Sample size : n= 4
Using binomial distribution,
Then , the probability that among a sample of 4 customers, they all exit through the same gate.
Hence, the probability that among a sample of 4 customers, they all exit through the same gate = 0.0123
Ответ:
answer:
d
step-by-step explanation:
all you gotta do is check it in ur calculator. it ain't rocket surgery