Question

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.

Answer 1

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:

`(.71)/(.9)` = .789 is the probability