A class consists of 10 boys and 8 girls. Three students are selected at random. What is the probability that the selected group has (i) all boys? (ii) all girls? (iii) at least one girl?

A class has 12 boys and 4 girls. If three students are selected at random from the class, what is the probability that all will be boys?

A class has 20 girls and 16 boys. One student is selected at random. Find the probability that the student is a girl.

In a class of 50 students, 20 are boys and rest are girls. A student is selected at random. Find the probability of selecting a boy.

6 boys and 6 girls sit in a row at random. Find the probability that all the girls sit together.

6 boys and 6 girls sit in a row at random. Find the probability that all the girls sit together.

5 boys and 5 girls sit in a row randomly. Find the probability that all the boys sit together.

A survey of 300 girls of a school was conducted and it was found that 108 girls like tea and 192 dislike it. Out of these girls one girl is selected at random. What is the probability that the selected girl (i) likes tea (ii) does not like tea.

Five boys and three girls are seated at random in a row. The probability that no boy sits between two girls, is

In a group of students , there are 3 boys and 3 girls . Four students are to be selected at random from the group . Find the probability that either 3 boys and 1 girl or 3 girls and 1 boy are selected .

From a group of 2 boy and 3 girls, two children are selected at random. Describe the events. A = both selected children are girls. B= the selected group consists of one boy and one girl. C= at least one boy is selected. Which pairs (s) of events is (are) mutually exclusive?