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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?????
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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 | 1 No |
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 |
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