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
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 |
A right circular cylinder and a cone are there. Base radius of cone is equal to radius of cylinder. What is the ratio of height to slant side if their volume are the same?
8 years ago i was 5 times as old as my son.today i am 3 times his age.how old i am
i have want jindal written aptitude test paper.
2 Answers Jindal, Jindal Steel and Power,
A store owner decided to raise the price of a particular item by exactly 10%. Of the following which is NOT the new price? A)$1.10 B)$8.80 C)$11.00 D)$57.30 E)$78.10
23*2
The owner of a hobby store needed to calculate the percentage of customers who purchase wood glue. Upon completing his survey, he noticed that 60% of the people that entered his store purchased an item. Of those customers, 15 percent purchased wood glue. What percent of the people that entered the store purchased wood glue? a) 8% b) 7% c) 9% d) 12% e) 15%
The ratio of the present ages of Suman and Renu is 5 : 7 respectively. Four years hence the ratio will become 3 : 4 respectively. What is the present age of Renu in years? (a) 28 (b) 24 (c) 20 (d) 21 (e) None of these
An equilateral triangle of sides 3 inch each is given. How many equilateral triangles of side 1 inch can be formed from it?
0 Answers 3i Infotech, Canara Bank, Geodesic, Mu Sigma,
they asked the temperature problem.it was same as previous papers.the ratio was -t*t/6+4t+12.
In a cricket match, two batsman playing on 94 runs each and they need 7 more runs to win in last 3 balls. at last they win the match and both batsman scored 100 runs not out. how it is possible that both batsman scored 100 run each being not out?
Fathers age is 5 times his son's age. 4 years back the father was 9 times older than son.Find the fathers' age.
Factorize y**2 + 8y - 48 =0