If 10% of the attacking air crafts are expected to be shot down before reaching the target, the probability that out of 5 aircrafts at least four will be shot before they reach the target is

If the chance of a gushot hitting a target is 0.2 then the probability that at least 2 shots out of 10 will hit the target is

If one out of 10 coming ships is wrecked.Find the probability that out of five coming ships at least 4 reach safely.

Five shots are fired at a target.If each shot has a probability 0.6 of hitting the target,what is probability that the target will at least once?

The probability that a ship safely reaches a port is (1)/(3) . The probability that out of 5 ships, at least 4 ships would arrive safely is

Atul can hit a target 3 times in 6 shots, Bhola can hit the target 2 times in 6 shots and Chandra can hit the 4 times in 4 shots. What is the probability that at least 2 shots (out of 1 shot taken by each one of them) hit the target ?

The probability of hitting a target in any shot is 0.5 If 10 shorts are fired , find the probability that the target will be hit in an odd number of times .

A man can hit a target 2 times out of every 3 shots. The least number of times he must shoot, so that the probability of hitting the target at least twice is more than 0.9 is