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Your family moves to a new town. While you are unpacking your room your brother is out playing with a boy from the neighborhood. At dinner your brother shares that only two other families have children and they both have two kids. The boy he was playing with likes Basketball and he mentioned his sibling prefers Futbol. The other family has a boy who plays Chess and a newborn.
"Does either family have a girl?" you ask. "I'm not telling," your brother says. "But pick the family that you think is more likely to have a girl. If they do have a girl, I'll do your chores for a week.
Which family is more likely to have a girl or does it not matter? WHY? Please explain your reasoning.
(mothers do not count)
Correct answer gets a trophy