Question

An airline has 83% of its flights depart on schedule. It has 68% of its flights depart and arrive on schedule. Find the probability that a flight departs on schedule also arrives on schedule.

Answer 1

options?

Answer 2

@rational

Answer 3

Options don't matter...

Answer 4

simply take the ratio

Answer 5

\[\text{P(arrives | departs)} = \dfrac{\text{P(arrives}\cap \text{departs}}{\text{P(departs)}} = \dfrac{0.68}{0.83} = ?\]

Answer 6

so .68/.83=0.819277.... ~0.82

Answer 7

Yep!