probability of observing an event.
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2 airlines fly to Memphis. according to airport data for the past year, wings airlines planes arrived on time 330 times and were late 60 times. Global airlines planes arrived on time 430 times and were late 50 times.
If one flight is randomly selected given that it was a global airlines flight what is the probability that it was late.
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You can make a table of what we know if that will help you make sense of the data:
On time Late
Wings 330 ...
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