The probability that a plane will leave Winnipeg on time is 0.70. The probability that a plane will leave Winnipeg on time and arrive in Calgary on time is 0.56. Given that a plane left Winnipeg on time, determine the probability the same plane will arrive in Calgary on time.

P ( A ) = P (leave Winnipeg on time) = 0.70

P ( A and B ) = P ( A âˆ© B ) = P (arrive in Calgary on time and leave Winnipeg on time) = 0.56

P ( B | A ) = P (arrive Calgary on time given leave Winnipeg on time) = ?

The probability that the plane will arrive in Calgary on time given that it left Winnipeg on time is 0.80 or 80%.

 Watch the video to see more examples involving conditional probability.

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