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Mathematics, 01.07.2019 18:50 zurfluhe

Four cards numbered 1, 5, 8, and 9 are placed in a bag. a card is drawn at random and then replaced. then a card is drawn at random again. what is the probability that both cards drawn have the number 9.

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Four cards numbered 1, 5, 8, and 9 are placed in a bag. a card is drawn at random and then replaced....
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