Question

A couple has four children what is the probability of three girls one boy

Answer 1

Answer:

This is similar to the two child problem.

So there are five cases, the gender of the children written according to their age,

GGGG

GGGB

GGBG

GBGG

BGGG

So the probability should be 4/5. But the given answer is 3/4.

Answer 2

There are a total of four children.

No. of girls to be considered 3

=> Probability of three girls one boy is =3/4

Hope it helps you..!