JEE Advanced | 2013ProbabilityHard
Question
Four persons independently solve a certain problem correctly with probabilities 
Then the probability that the problem is solved correctly by at least one of them is
Then the probability that the problem is solved correctly by at least one of them is Options
A.
B.
C.
D.
Solution
P( Problem is solved by at least one of them) = 1 - P(solved by none)
Create a free account to view solution
View Solution FreeMore Probability Questions
Two cubes have their faces painted either red or blue. The first cube has five red faces and one blue face. When the two...A six faced die is a biased one. It is thrice more likely to show an odd number than show an even number. It is thrown t...Fifteen coupons are numbered 1, 2, ......., 15, respectively Seven coupons are selected at random one at a time with rep...A bag contains 3 black and 2 white balls. What are the odds in favour of drawing a white ball?...A card is drawn from a well shuffled pack of 52 cards. Its probability of being an ace or a king or a queen or a jack is...