In a family, out of 3 children, one of them at least Boy. Find the porbability of two boys in this family.

Find the probability that in a family of 4 children there will be at least one boy. (Assume that the probability of a male child is 1/2 )

It is known that a family has 3 childern and at least 1 of these 3 childern is boy. Find the probability that 2 of the 3 chilidren are boys.

It is known that a family has 3 childern and at least 1 of these 3 childern is girl. Find the probability that all of the 3 chilidren are girl.

Given that a family of two children has a boy , what is the probability that the other also is a boy?

A father has 3 children with at least one boy. The probability that he has 2 boys and 1 girl is a. 1//4 b. 1//3 c. 2//3 d. none of these

A couple has two children, (i) Find the probability that both children are males, if it is known that at least one of the children is male. (ii) Find the probability that both children are females, if it is known that the elder child is a female.

Assume that each born child is equally likely to be a boy or a girl. If a family has two children, what is the conditional probability that both are girls given that  (i) the youngest is a girl, (ii) at least one is a girl?

Assume that each child born is equally likely to be a boy or a girl. If a family has two children, what is the conditional probability that both are girls given that the youngest is a girl ?

In a family there are 4 children. Find the probability that (i) all of them will have different birthdays, (ii) two of them will have the same birthday (1 year = 365 days).

In family there are 5 children. Find the probability that (i) all of them will have different birthdays (ii) two of them will have the same birthday and (iii) at least two of them will have the same birthday (1 year = 365 days).