khamani623
07.03.2020 •
Mathematics
At a certain airport, 65% of the flights arrive on time. A sample of 10 flights is studied. Find the probability that all 10 of the flights were on time.
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Ответ:
So, the probability is P=0.0135.
Step-by-step explanation:
We know that at a certain airport, 65% of the flights arrive on time.
We get that p=0.65 and q=1-0.65=0.35.
We have 10 flights, so n=10.
We calculate the probability that all 10 of the flights were on time, so k=10.
We use the formulu:
we get:
So, the probability is P=0.0135.
Ответ: