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March 28, 2017

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A bag contains 3 red chips, 2 blue chips, and 1 white chip. If 2 chips are chosen from the bag (without replaceent), determine the probability that they are of different colors.

  • probability - ,

    ways to get two different colors
    rb
    rw
    bw
    br
    wr
    wb

    add the probability of each of these.

    I will do the first two:
    Pr(rb)=3/6*2/5
    Pr(rw)=3/6*1/5

  • probability - ,

    ok but how do i find the final probability?
    i see how i can get the probability of a certain combination, but i don't understand how i can find that end probability.

  • probability - ,

    never mind i got it
    thank you so much bobpursley!

  • probability - ,

    A bag contains 4 purple, 3 blue and 2 red cubes. Select 3 cubes and stack on table next to the bag. What is probability of the cubes being red, purple then blue

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