Pulsified333
  • Pulsified333
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?
Mathematics
schrodinger
  • schrodinger
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Pulsified333
  • Pulsified333
dan815
  • dan815
i r here!
Pulsified333
  • Pulsified333
:D

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dan815
  • dan815
okay so its on time
dan815
  • dan815
East-West Air 4 60 Air One 3 50 International Air 6 80
dan815
  • dan815
4*0.6 = on time east -west air 4*0.6 + 3*0.5 + 6*0.8 = every on time flight 4*0.6/(4*0.6 + 3*0.5 + 6*0.8 ) is on time west air out of all the possible on time flights
dan815
  • dan815
same method for the rest
Pulsified333
  • Pulsified333
I didn't think about it like that ;(
dan815
  • dan815
xD its been the same kind of question for the last 3 ones lol
Pulsified333
  • Pulsified333
but now it makes sense to why you multiplied the number of flights
dan815
  • dan815
infact we did a same one yesterday too i think
Pulsified333
  • Pulsified333
similar one but not the same
Pulsified333
  • Pulsified333
ive had a long day so it blurs together
dan815
  • dan815
its all P(B|b)
dan815
  • dan815
hehe its okay
Pulsified333
  • Pulsified333
so for east-west it should be 2.6/8.9
Pulsified333
  • Pulsified333
Pulsified333
  • Pulsified333
it says not correct
dan815
  • dan815
8/29
dan815
  • dan815
make sure u plug into calculator right
Pulsified333
  • Pulsified333
Got the first one, the second one should be 15/87 and im working on the third right now
Pulsified333
  • Pulsified333
its right :D thanks
dan815
  • dan815
(:

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