A family has two children. One of them is chosen at random and found that the child is a girl. Find the probability that: both the children are girls.

There are two childrens in a family. The probability that both of them are boys is

Two integers are chosen at random and multiplied. Find the probability that the product is an even integer.

In four schools B_1, B_2, B_3, B_4 the percentage of girls students is 12, 20, 13, 17 respectively. From a school selected at random, one student is picked up at random and it is found that the student is a girl. The probability that the school selected is B_2 , is

Ram is visiting a friend. Ram knows that his friend has 2 children and 1 of them is a boy. Assuming that a child is equally likely to be a boy or a girl, then the probality that the other child is a girl is

Two cards are drawn from a pack of 52 cards. Find the probability that : both are red cards.

Two coins are tossed . Find the probability of getting a head on both the coins.

Two cards are drawn from a pack of 52 cards. Find the probability that : both are from the same suit.