Results 1 to 2 of 2

Math Help - Multinomial Distribution

  1. #1
    Newbie
    Joined
    Jan 2009
    Posts
    7

    Multinomial Distribution

    Hi all,

    Need a bit of help with this one. I know I need to use the multinomial distribution, but I'm missing something small;

    Question:
    If five balanced dice are rolled, what is the probability that the number 1 and the number 4 will appear the same number of times?

    The answer should be 2424/6^5. Any ideas on how to get there?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by bobbe989 View Post
    Hi all,

    Need a bit of help with this one. I know I need to use the multinomial distribution, but I'm missing something small;

    Question:
    If five balanced dice are rolled, what is the probability that the number 1 and the number 4 will appear the same number of times?

    The answer should be 2424/6^5. Any ideas on how to get there?
    Calculate Pr(number 1 appears zero times and number 4 appears zero times) + Pr(number 1 appears once and number 4 appears once) + Pr(number 1 appears twice and number 4 appears twice).
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Multinomial expansion
    Posted in the Discrete Math Forum
    Replies: 4
    Last Post: August 20th 2011, 03:32 AM
  2. multinomial distribution , interpretation
    Posted in the Statistics Forum
    Replies: 4
    Last Post: February 21st 2011, 09:15 PM
  3. Multinomial distribution
    Posted in the Advanced Statistics Forum
    Replies: 6
    Last Post: December 9th 2010, 11:42 AM
  4. multinomial distribution
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: January 30th 2010, 01:17 AM
  5. multinomial?
    Posted in the Discrete Math Forum
    Replies: 6
    Last Post: May 31st 2008, 11:29 AM

Search Tags


/mathhelpforum @mathhelpforum