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An airline has 90% of its flights depart on schedule. It has 71% of its flights depart and arrive on schedule. Find the probability that a flight that departs on schedule also arrives on schedule.

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MissPhiladelphia
The following probabilities are given:

0.9 is the probability of the flight that departs on schedule.
0.71 is the probability of the flight that departs and arrive on schedule.

This problem is an example of a conditional probability, so we will use the quotient rule. To solve for the probability of the flight departs on schedule and also arrives on schedule is computed by:
[tex] \frac{.71}{.9} [/tex]  = .789 is the probability

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