From a group of 2 males and 2 females, two persons are selected at random to form a committcc. What is the probability that committec has (i) none of the male. (ii) exactly one male. (iii) both male.

In a group of 20 males and 5 females, 10 males and 3 females are service holders. What is the probability that a person selected at random from the group, is a service holder, given that the selected person is a male ?

In a group of 20 males and 5 females, 10 males and 3 females ae service holders, What is the probability that a persons selected at random from the group, is a service holder, given that the selected person is a male?

Six married couples are locked in a room, If two people are chosen at random, then the probability that one is male and the other is a female is

Six married couples are locked in a room, If two people are chosen at random, then the probability that one is male and the other is a female is

Suppose 5% of men and 0.25% of women have grey hair. A grey haired person is selected at random. What is the probability of this person being male? Assume there are equal number of males and females.

Suppose that 5 males out of 100 and 25 females out of l000 are colour blind. A colour blind person is chosen at random. What is the probability that a male is chosen (assume that the number of males and females are equal)?

Suppose that 10% of men and 5% of women have grey hair. A grey haired person is selected at random. What is the probability that the selected person is male assuming that there are 60% males and 40% females