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Math Help - Probability

  1. #1
    Newbie
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    Dec 2006
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    Probability

    Actually 2 more guys if you don't mind
    Probability-problem-1.jpg
    thanks for yor help
    appriepriate it
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  2. #2
    Super Member

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    Lexington, MA (USA)
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    Hello, Mauro!

    Are you really having difficulty reasoning these out?


    A box contains 3 marbles: 1 red, 1 green and 1 blue.
    Consider an experiment that consists of taking one marble from the box,
    replacing it, and then drawing a second marble from the box.

    (a) Describe the sample space.
    . . . \begin{Bmatrix} RR & RG & RB \\ GR & GG & GB \\ BR & BG & BB\end{Bmatrix}


    (b) Describe the sample space when the first marble is not replaced.
    . . . \begin{Bmatrix}RG & RB \\ GR & GB \\ BR & BG\end{Bmatrix}
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