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Homework Help: Probability problem, very hard

  1. Feb 25, 2008 #1
    Last edited: Feb 26, 2008
  2. jcsd
  3. Feb 25, 2008 #2


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    Science Advisor

    Have you done problem 1? Problem 2 says "This one may seem easy/trivial if you have completed problem 1, since it is looking at the same problem in just a slightly different way."
    Look back at how you did problem 1 and see if you can tell how it applies.
  4. Feb 25, 2008 #3

    i dont know. really i tried and tried . cant seem to find a right answer or to resolve it.
  5. Feb 26, 2008 #4
    you can delete the post if u want to. i resolve the problem and thx u for everything
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