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A particular flight from city a to city b is on time 91% of the time. if 60 of these flights are made in a month, what is the probability that all of them are on time?

A particular flight from city a to city b is on time 91% of the time. if 60 of these flights are made in a month, what is the probability that all of them are on time?
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A particular flight from city a to city b is on time 91% of the time. if 60 of these flights are made in a month, what is the probability that all of them are on time?

User Ivo Jansch
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1 Answer

1 vote
The events are independent (and less importantly mutually exclusive).
This means that the probability that they are all on time is simply:
(0.91)⁶⁰ = 0.00348725.....
= 0.00349 (or 0.349 %)
User Shawn Erquhart
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