Mathematics, 31.01.2020 09:01 studyoverload

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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