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Mathematics 20 Online
OpenStudy (anonymous):

Please Help!! Will Medal (answer must be correct) You have a 4-card deck containing a queen, a jack, a 10, and a 9. You draw a random card, put it back, and draw a second random card. Use a tree diagram to calculate the probability that you draw exactly 1 "numbered" card (a 9 or a 10).

OpenStudy (anonymous):

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