Results 1 to 3 of 3

Math Help - binomial distribution

  1. #1
    Newbie
    Joined
    Jun 2008
    Posts
    3

    binomial distribution

    i could really do with some help with this for my coursework.

    basically i rolled five dice 200 times and had to write down how many times i got a 6 in each throw.
    now i have to do the binomial distribution with the results and then the chai square

    does anyone know what to do. i dont really understand all of the text available on the internet
    Follow Math Help Forum on Facebook and Google+

  2. #2
    GAMMA Mathematics
    colby2152's Avatar
    Joined
    Nov 2007
    From
    Alexandria, VA
    Posts
    1,172
    Awards
    1
    Quote Originally Posted by adam_1990 View Post
    i could really do with some help with this for my coursework.

    basically i rolled five dice 200 times and had to write down how many times i got a 6 in each throw.
    now i have to do the binomial distribution with the results and then the chai square

    does anyone know what to do. i dont really understand all of the text available on the internet
    Please do not post the same question twice as you have posted here as well: http://www.mathhelpforum.com/math-he...tribution.html

    You want to know the expected number of 6's thrown in total or each time? Each time, the expected amount is simply 5*\frac{1}{6} = \frac{5}{6}. Likewise, multiply that by 200 for the total expected amount of 6's. There is no use for Binomial or Chi-Square unless you have a specific question such as the expected amount of throws with 2 or more 6's. That question used Binomial properties of probability.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Jun 2008
    Posts
    3
    id posted it in urgent homework help and then saw this section and thought it would be more relevent to the question.

    the question states firstly to "use binomial distribution to model the data and calculate the expected frequencies using you model"
    and then the next question says "use a chai squared test to decide whether the dice may be considered fair"
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Binomial distribution.
    Posted in the Statistics Forum
    Replies: 1
    Last Post: May 30th 2010, 05:13 AM
  2. Replies: 3
    Last Post: March 21st 2010, 05:25 PM
  3. Replies: 1
    Last Post: November 12th 2009, 12:38 AM
  4. Replies: 1
    Last Post: March 11th 2009, 11:09 PM
  5. Cumulative distribution function of binomial distribution
    Posted in the Advanced Statistics Forum
    Replies: 2
    Last Post: October 31st 2008, 03:34 PM

Search Tags


/mathhelpforum @mathhelpforum