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a bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. Whats the probability od drawing a red chip, replacing it, then drawing a blue chip

  • math -

    There are 25 chips. 7/25 of them are red and 6/25 are blue.
    The probability of what you described is
    (7/25)*(6/25) = 42/625

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