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Boy or Girl?

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Author:Math Forum, a Classic Problem from the Ask Dr. Math FAQ
Description: In a two-child family, one child is a boy. What is the probability that the other child is a girl? What if the older child is a boy?
Levels: Elementary, Middle School (6-8), High School (9-12)
Languages: English
Resource Types: Problems/Puzzles
Math Topics: Probability

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