The probability of any ship return safely to the port is `1/5.` Find the probability that the returning out of `4` ships,

The probability of any ship return safely to the port is 1/5 . Find the probability that the returning out of 5 ships, at least 3 ships returns safely. It is given that returning ships are independently.

The probability of any ship return safely to the port is 1/5 .Find the probability that the returning out of 5 ships,at least 3 ships returns safely.It is given that returning ships are independently.

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

The probability that a student is not a swimmer is (1)/(5) . Find the probability that out of 5 students. at most three are swimmers.

The probability that a student is not a sportsman is 1/5.Then the probability that out of 6 students,4 are sportsman is.

The probability that a student is not a swimmer is 1/5. Then find the probability that out of 5 students exactly 4 are swimmer.

The probability that a student is not a swimmer is 1/5 . What is the probability that out of 5 students, 4 are swimmers?

The probability that out of 5 ship is wrecked by enemies is (1)/(5). The probability that out of 5 ships,at least 4 will is arrive safely after the journey,is

* In a race,the probability of A to win the race is (1)/(7) and of B is (1)/(4). Find the probability that any one of them win the race