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PLEASE HELP!! TIMED TEST! In a recent survey of 705 teens, 300 said they have a sister and 383 teens have a brother. One-third of

PLEASE HELP!! TIMED TEST!

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In a recent survey of 705 teens, 300 said they have a sister and 383 teens have a brother. One-third of those teens with a sister also have a brother. What is the probability that a teen has a sister or brother? What is the probability that a teen has a sister or no siblings? What is the probability that a teen has a brother or no siblings

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