Results 1 to 2 of 2

Thread: number of throws till die shows all faces

  1. August 10th 2011, 02:18 AM #1
    hmmmm
    hmmmm is offline
    Senior Member
    Joined
    Dec 2008
    Posts
    288

    number of throws till die shows all faces

    A fair die is thrown until each of its 6 faces have been shown at least once, what is the expected number of throws?

    thanks for any help
    Follow Math Help Forum on Facebook and Google+
  2. August 10th 2011, 02:35 AM #2
    mr fantastic
    mr fantastic is offline
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,953
    Thanks
    5

    Re: number of throws till die shows all faces

    Quote Originally Posted by hmmmm View Post
    A fair die is thrown until each of its 6 faces have been shown at least once, what is the expected number of throws?

    thanks for any help
    Read this: Coupon collector's problem - Wikipedia, the free encyclopedia
    Follow Math Help Forum on Facebook and Google+
« Markov Chain Limiting Probabilities (Just need answer checked please) | standard deviation »

Similar Math Help Forum Discussions

  1. faces of a graph
    Posted in the Discrete Math Forum
    Replies: 1
    Last Post: September 6th 2011, 05:54 PM
  2. 20 tills no more than 4 customer per till
    Posted in the Business Math Forum
    Replies: 0
    Last Post: February 28th 2011, 06:48 AM
  3. The probability of a die landing on some number n times in m throws
    Posted in the Statistics Forum
    Replies: 2
    Last Post: May 9th 2010, 10:08 AM
  4. Number of outcomes of two dice, three throws
    Posted in the Statistics Forum
    Replies: 4
    Last Post: May 25th 2009, 03:42 PM
  5. Writing the Numbers till N to form a new number
    Posted in the Number Theory Forum
    Replies: 1
    Last Post: March 25th 2009, 01:17 AM

Search Tags


/mathhelpforum @mathhelpforum