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March 30, 2017

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7 white socks anf four black socks are in a bag. if two socks are drawn at random, what is the probability that both socks are the same color?

thank you so much for the help

  • probability - ,

    3 out of 11

  • probability - ,

    stop it.

  • probability - ,

    i'm sorry, i don't understand this response. does it mean the first answer 3/11 is incorrect?

  • probability - ,

    Pr(both)=Pr(both black) + prob(white)
    = 4/11*3/10 + 7/11*6/10

  • probability - ,

    Mr. Pursley,

    thank you for taking the time to answer my question. i very much appreciate the help.

    just to clarify, then the answer would be
    (.3636*.3)+(.6363*.6)=0.49
    is this right?

  • probability - ,

    correct.

  • probability - ,

    thank you again for all the help

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