Dr. Johnson has two kids. One of them is a girl.
Assuming that the probability of each gender is ½, what is the probability that the other kid is also a girl?
Dr. Johnson has two kids. One of them is a girl.
Assuming that the probability of each gender is ½, what is the probability that the other kid is also a girl?
Answer:
The possible combinations of kids for this situation are Girl-Girl, Girl-Boy, and Boy-Girl. We need the combination Girl-Girl, so there are three possible outcomes, and we need just one of them, therefore, the probability is 1/3.
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