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Betty plans to have two children but doesn't know if they will be boy-boy, girl-girl, or boy-girl. What is the probability that she will have two girls?

Betty plans to have two children but doesn't know if they will be boy-boy, girl-girl, or boy-girl. What is the probability that she will have two girls?
asked 191k views
4 votes
Betty plans to have two children but doesn't know if they will be boy-boy, girl-girl, or boy-girl. What is the probability that she will have two girls?

asked
User Igrigorik
by
8.3k points

1 Answer

5 votes
50%  every birth has a 50 50 chance of boy or girl
answered
User Dionysis
by
8.4k points
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