Math

posted by Elizabeth

" kelly has twelve cards numbered 1 to 12. what is the probability of picking three even-numbered cards consecutively, if the first two cards are not replaced?

  1. Steve

    6/12 * 5/11 * 4/10

  2. HELEN

    I DID 7*7*6=294. 294/1728=49/288.
    IM PROBABLY WRONG, THOUGH
    SO LISTEN TO STEVE.

  3. ANGELINA

    Doesn't it have to be 7/12*6/11*5/10??

  4. ann

    no, it's 1,3,5,7,9,11
    and
    2,4,6,8,10,12

  5. ANGELINA

    SORRY!

  6. ANGELINA

    But how about the replaced portion?
    I don't get this

  7. HELEN

    YA I DON'T GET IT EITHER. SO IT IS 6/12*5/11* NOT BY 4/10 BECAUSE IT IS BEING REPLACED, RIGHT???
    SO CONFUSED AUSSI...

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