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Mathematics, 13.08.2019 17:20 ghimiren7443
For father's day erica purchased three father's day cards. she addressed one envelope to her father, one to her paternal grandfather and one to her maternal grandfather. accidentally, the cards are randomly inserted into the envelopes and mailed without checking to see if the correct card was placed in the correct envelope. what is the probability that all three cards were placed in the correct envelope?
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