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Please help with this question. A bag contains 10 marbles of which 3 are red. A marble is selected at random and replaced. A second marble is then selected at random. What is the probability that both marbles are red?

  • math -

    3/10 * 3/10 = .3 * .3 = ?

  • math -

    Sorry probability is not really easy for me. I was thinking .3=9

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