Sunday, October 15, 2006
Fun Probability
1) It is known that family A has 2 children. One of the children is female. What is the probability that the other child is male?
The correct answer is 2/3.Since one of the children is female, the
possible arrangements of children is {(male,female) ,(female, male),
(female,female) }. Among 3 of them, there are 2 arrangements that
gives the other child is male. So the probability of the other child
is male is 2/3
The correct answer is 2/3.Since one of the children is female, the
possible arrangements of children is {(male,female) ,(female, male),
(female,female) }. Among 3 of them, there are 2 arrangements that
gives the other child is male. So the probability of the other child
is male is 2/3
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