The probability of a candidate passing an examination at any one attempt is `3/5`.He carries on entering until he passes and each entry costs him Rs. 1. The expected cost of his passing the exam is (in Rs)

The probability of student A passing an examination is 3/7 and of student b passing is 5/7. Assuming the two events Apasses, B passes, as independent, find the probability of: Only A passing the examination Only one of them passing the examination

The probability of student A passing an examination is 3/7 and of student b passing is 5/7. Assuming the two events Apasses, B passes, as independent, find the probability of: Only A passing the examination Only one of them passing the examination

The probability of student A passing an examination is (3)/(7) and of student B passing is (5)/(7). Assuming the two events A passes B passes as independent,find the probability only one of thempassing the examination.

The probability of student A passing an examination is 3/7 and of student B passing is 5/7 . Assuming the two events "A passes, B passes", as independent, find the probability of : only one of them passing the examination

The probability of student A passing an examination is 3/5 and of student B pasing is 4/5 . Assuming the two events: 'A passes', 'B passes', as independent find the probability of: only one of the two passing the examination.

The probability that a candidate passes in physics is 70% and that he passes in chemistry is 40%. What is the probability that the candidate passes in any one of the two subjects?

The probability student A passing an examination is (3)/(5) , student B passing an examination is (4)/(5) . Find the probability only one of them will pass the examination, assuming the events 'A passses and 'B passes' are independent.

The probability that a student passes at least in one of the three examinations A,B,C is 0.75, the probability that he passes in atleast two of the exams is 0.5 and the proabability he passes exactly two of the exams is 0.4 . If alpha,beta, gamma , are respectively the probabilities of the student passing in A,B,C then.

A candidate take three tests in succession and the probability of passing the first test is p. The probability of passing ech succeeding test p or p/2 according as he passes or fails in the preceding one. The candidate is selected if he passes at least two tests. The probability that the candidate is selected is

The probability that a student will pass in Mathematics is 3/5 and the probability that he will pass in English is 1/3. If the probability that he will pass in both Mathematics and English is 1/8, what is the probability that he will pass in at least one subject?