Home
Class 12
MATHS
A student appears for tests I, II and II...

A student appears for tests I, II and III. The student is considered successful if he passes in tests I, II or I, III or all the three. The probabilities of the Student passing in tests II and III are m, n and `1/2` respectively. If the probability of the student to be successful is `1/2`, then which one of the following is correct? (a) `m (1+n)=1` (B) `n (1+m) =1` (C) `m=1` (D) `mn=1 `

Promotional Banner

Similar Questions

Explore conceptually related problems

A student appears for tests I, II and III. The student is successful if the passes either in tests I and II or tests I and III. The probabilities of the student passing in tests I, II and III are p,q and (1)/(2) , respectively. If the probability that the student is successful, is (1)/(2) , then

A student appears for tests 1, 2 and 3. The studentis successful if he passes either in tests 1 and 2 or tests 1 and 3. The probabilities of the student passing in tests 1, 2 and 3 are p, q and (1)/(2) , respectively. If the probability that the student is successful is (1)/(2) , then

A student appears for test I and II.The student is successful if he passes either in test I or test II.The probability of the student passing in test I and II are p and (1)/(3) respectively.If the probability that the student is successful is (1)/(2) then find the value of p.

In a maths paper there are 3 sections A,B& C. Section A is compulsory. Out of sections B & C a student has to attempt any one. Passing in the paper means passing in A & passing in B or C. The probability of the student passing in A, B & C are p,q & 1/2 respectively. If the probability that the student is successful is 1/2 then :

The probabilities of a student getting I, II and III division in an examination are 1/(10),3/5a n d1/4\ respectively. The probability that the student fails in the examination is (197)/(200) b. (27)/(100) c. (83)/(100) d. none of these