Probability Tes...

If E and F are independent events such that 0 < P(E) < 1 and 0 < P(F) < 1, then

Two aeroplanes I and II bomb a target in succession. The probabilities of I and II scoring a hit correctly are 0.3 and 0.2 respectively. The second plane will bomb only if the first misses the target. The probability that the target is hit by the second plane is

A pair has two children. If one of them is boy, then the probability that other is also a boy is

Three coins are tossed. If one of them shows tail, then the probability that all three coins show tail is

One Indian and four American and their wives are to be seated randomly around a circular table. Then the conditional probability that the Indian man is seated adjacent to his wife given that each American man is seated adjacent to his wire is

A biased die is tossed and the respectively probabilities for various faces to turn up are given below
If an even face has turned up, then the probability that it is face 2 or face 4 is

A letter is known to have come either from LONDON or CLIFTON; on the postmark only the two consecutive letters ON are eligible. The probability that it came from LONDON is