Ok, so Teanchi and Beanchi are a married couple (dont ask me whose he and whose she)!
They have two kids, one of them is a girl, what is the probability that the other kid is also a girl.
Assume safely that the porbability of each gender is 1/2.
Ofcourse its not 1/2 else would make it a lousy puzzle...
Ans: 1/3
This is a famous question in understanding conditional probability, which simply means that given some information you might be able to get a better estimate.
The following are possible combinations of two children that form a sample space in any earthly family:
Girl - Girl
Girl - Boy
Boy - Girl
Boy - Boy
Since we know one of the children is a girl, we will drop the Boy-Boy possibility from the sample space.
This leaves only three possibilities, one of which is two girls. Hence the probability is 1/3
Ok, so Teanchi and Beanchi are a married couple (dont ask me whose he and whose she)!
They have two kids, one of them is a girl, what is the probability that the other kid is also a girl.
Assume safely that the porbability of each gender is 1/2.
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