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a bag contains 5 green marbles 2 white marbles 8 blue marbles 9 red marbles and 6 black marbles what is the probability of drawing a white marble replacing it and then drawing a green marble? Answer choices A 1/6 B 1/15 C 1/87 D 1/90 I think its D, but I am not sure and how did you do this question

  • pre-algebra -

    Pr(w,g)=2/30*5/30=1/15*1/6=1/90 You think correctly.

  • Math -


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