The probability that a student is not a swimmer is `1/5` . Then the probability that out of five students, four are swimmers is (A) `^5C_4""(4/5)^4""1/5` (B) `(4/5)^4""1/5` (C) `^5C_1 1/5(4/5)^4` (D) None of these

The prbability that a student is not a swimmer is 1/5. Then find the probability that our 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?

If the probability that a person is not a swimmer is 0.3, then find the probability that out of 5 persons 4 are swimmer

If the probability that a person is not a swimmer is 0.3, then the probability that out of 5 persons 4 are swimmers is

The probability that a marksman will hit a target is given is 11/5. Then the probability that at least once hit in 10 shots is 1-(4/5)^(10) b.1/5^(10) c.1-(1/5)^(10) d.(4/5)^(10)

Probability that A speaks truth is 4/5 . A coin is tossed. A reports that a head appears. The probability that actually there was head is (A) 4/5 (B)1/2 (C) 1/5 (D) 2/5

The probability that A speaks truth is (4)/(5) while this probability for B is (3)/(4) .The probability that they contradict (A) (4)/(5) (B) (1)/(5) (C) (7)/(20) (D) (3)/(20)

The probability that a bulb produced by a factory will fuse after 150 days if used is 0.05 . what is the probability that out of 5 such bulbs none will fuse after 150 days of use? 1-((19)/(20))^(5) b.((19)/(20))^(5) c.((3)/(4))^(5) d.90((1)/(4))^(5)

The probability to pass in an examination of mathematics for three students are 1/4,1/5,1/6 . Find the probability that at least two students will pass in this examination.

A problem is given to 3 students.Their chances of solving it individually are (1)/(3),(1)/(4) and (1)/(5). The probability that the problem will be solved is (A) (2)/(5) (B) (3)/(5) (C) (4)/(5) (D) (1)/(5)