The probability that a student will pass the final examination in both English and Hindi is 0.5 and the probability of passing neither is 0.1. If the probability of passing English examination is 0.75, what is the probability of passing the Hindi Examination?

The probability that student will pass the final examination in both English and Hindi is 0.5 and the probability of passing neither is 0.1 . If the probability of passing English examination is 0.75 , what is the probability of passing the Hindi Examination?

The probability that a student securing first division ia an examination is 1/10 . What is the probability that out of 100 students twenty pass in first division ?

If the probability that a person is not a swimmer is 0.3, then find the probability that out of 5 persons 4 are swimmer.

The probability that a bulb produced by a factory will fuse after 150 days of used is 0.05. Find the probability that out of 5 such bulbs none is fuse.

In a class 30% of the student fail in Mathematics, 20% of the student fail in English and 10% fail in both.What is the probability that he has failed in both ?

In a class of 75 students, 15 are above average, 45 are average and the rest below average achievers. The probability that an above average achieving student fail is 0.005 , that an average achieving student fails is 0.05 and the probability of a below average achieving student failing is 0.15 . If a student is known to have passed, then what is the probability that he is a below average achiever?