A couple is determined to have at least one son and at least one daughter. What is the minimum expected total number of children they will have?
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Let me help u with this question. The answer is already present in this question. If a couple is determined to have at least one son and at least one daughter then the minimum expected total number of children they will have is "2".
One son and one daughter. Hope this is the answer to your question. Thanks.
One son and one daughter. Hope this is the answer to your question. Thanks.
Answered by
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Well this a probability question:
Given :
A couple is determined to have at least one son and at least one daughter.
To Find:
What is the minimum expected total number of children they will have
Solution :
If both the sexes [ boy and a girl ] have the same probability = 1/2Whatever may be the first child the couple will have.Then the couple will haveto have on average 2 more kids to get the other sex.
So the answer is 3
Given :
A couple is determined to have at least one son and at least one daughter.
To Find:
What is the minimum expected total number of children they will have
Solution :
If both the sexes [ boy and a girl ] have the same probability = 1/2Whatever may be the first child the couple will have.Then the couple will haveto have on average 2 more kids to get the other sex.
So the answer is 3
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