Math

" 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?

asked by Elizabeth
  1. 6/12 * 5/11 * 4/10

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

    posted by HELEN
  3. Doesn't it have to be 7/12*6/11*5/10??

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

    posted by ann
  5. SORRY!

    posted by ANGELINA
  6. But how about the replaced portion?
    I don't get this

    posted by ANGELINA
  7. 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...

    posted by HELEN

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