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Q.15 For the FIFA world cup, Paul the octopus has been
predicting the winner of each match with amazing success.
It is rumored that in a match between 2 teams A and B, Paul
picks A with the same probability as A’s chances of
winning. Let’s assume such rumors to be true and that in a
match between Ghana and Bolivia, Ghana the stronger team
has a probability of 2/3 of winning the game. What is the
probability that Paul will correctly pick the winner of the
Ghana-Bolivia game?
4/9
2/3
1/9
5/9

Answer is: 5/9

can someone plz explain how this ans is calculated?????

Answers were Sorted based on User's Feedback



Q.15 For the FIFA world cup, Paul the octopus has been predicting the winner of each match with am..

Answer / anugoonj

its (2/3)^2 + (1/3)^2= 4/9+1/9 = 5/9

Is This Answer Correct ?    9 Yes 0 No

Q.15 For the FIFA world cup, Paul the octopus has been predicting the winner of each match with am..

Answer / nitin

this can be solved by BAYES theorem of probability in class
12th book...check that out......

p(E1/A)= p(E1)*p(A/E1)
______________
p(E1)*p(A/E1)+p(E2)*p(A/E2)+ + +

Is This Answer Correct ?    6 Yes 0 No

Q.15 For the FIFA world cup, Paul the octopus has been predicting the winner of each match with am..

Answer / neo

pauls guessing and teams winning aare independent events so
ans = prability that[(paul picks ghana and ghana wins) or (paul picks bolivia and bolivia wens)]
ans = (2/3)*(2/3) + (1/3)*(1/3)
ans = 5/9

Is This Answer Correct ?    4 Yes 0 No

Q.15 For the FIFA world cup, Paul the octopus has been predicting the winner of each match with am..

Answer / vikalp

5/9

Is This Answer Correct ?    1 Yes 0 No

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