Mother was the Doctor.
In another way, son's mum is a doctor, so father can be anyone


The following are possible combinations of two childrenTeanchi and Beanchi are a married couple (dont ask me who he is and who she is)!
They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?
Hint: It is not 1/2 as you would first think.
Girl - Girl
Girl - Boy
Boy - Girl
Boy - Boy
but as here given 1 of them is girl so drop the boy boy combination.
This leaves only three possibilities. 1/3


But the problem is question begin after the first flip with the result which is tail. Therefore we cannot consider head-head probability. So the answer is I think 1/3.
