Results 1 to 3 of 3

Math Help - Simple random walk...

  1. #1
    Newbie
    Joined
    Nov 2008
    Posts
    24

    Simple random walk...

    I have the following question and my answers (in red) which I think are correct [of course, correct me if they aren't]. However, I have an issue with the last part as I can't seem to separate the last bit into the two functions. Mainly as I don't know how to separate (x+y)! I believe the 'comment' that they are looking for is that it shows the two events are independent, right?

    Follow Math Help Forum on Facebook and Google+

  2. #2
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by ZTM1989 View Post
    I have the following question and my answers (in red) which I think are correct [of course, correct me if they aren't]. However, I have an issue with the last part as I can't seem to separate the last bit into the two functions. Mainly as I don't know how to separate (x+y)! I believe the 'comment' that they are looking for is that it shows the two events are independent, right?

    The number of up transitions is independent of the number of down transitions.

    The mean number of up transitions is 2.5*0.6, and of down transitions is 2.5*0.4 and both have a Poisson distribution.

    CB
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Nov 2008
    Posts
    24
    Ok, but I'm meant to seperate the equation I have arrived at in the last part, no?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Duration of a simple random walk
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: July 18th 2011, 06:38 AM
  2. Random Walk in 2D
    Posted in the Advanced Statistics Forum
    Replies: 3
    Last Post: November 17th 2010, 04:04 AM
  3. Random Walk
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: October 18th 2010, 05:29 PM
  4. an almost random walk SP
    Posted in the Advanced Statistics Forum
    Replies: 3
    Last Post: July 15th 2010, 11:58 AM
  5. Continuous time simple random walk
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: April 26th 2010, 02:56 PM

Search Tags


/mathhelpforum @mathhelpforum