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6 November, 18:51

Assume that there are three airlines from which to choose, each with a number of flights per day, and an on-time percentage shown below. (Assume that delays occur randomly.) A traveler selects a flight at random, and it arrives on time.

Airline Num. of Flights On-Time Perc.

East-West Air 4 60

Air One 3 50

International Air 6 80

(1) What is the probability that the traveler flew on East-West Air?

(2) What is the probability that the traveler flew on Air One?

(3) What is the probability that the traveler flew on International Air?

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  1. 6 November, 19:02
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    1.) The probability that the traveler flew on East-West Air is 4 / (4 + 3 + 6) = 4/13 = 31%

    2.) T he probability that the traveler flew on Air One is 3/13 = 23%

    3.) T he probability that the traveler flew on International Air is 6/13 = 46%
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