What is the probability of three daughters to a couple in three children :-

If birth to amale child and birth to a femal child are equal probable, then what is the probability that at least one of the three children born to a couple is male?

Probability of four sons to a couple is :

Probability of four son to a couple is :-

A phentypically normal couple has two normal daughters and a son affected with haemophilia.What is the probability that both the daughter are heterozygous carries ?

(a)How does a haemophilic patient suffer? (b)A haemophilic son is born to a normal couple,Explain the mechanism of this inheritance.What is the probability of a haemophilic daughter being born to this couple?

Three fair dice,are rolled.What is the probability that three numbers come up form sides of a triangle?

What is the probability of reaction with molecularity higher than three very rare?

In a family husband and wife both have an X-linked dominant disorder then what will be probability of a normal daughter in children ?