Results 1 to 4 of 4

Math Help - Struggling with problem

  1. #1
    Newbie
    Joined
    Oct 2010
    Posts
    2

    Struggling with problem

    I'm trying to find the MGF of the gamma distribution. But I can't find seem to find a way with the MGF.

    I need to find the mean and variance of the gamma random variable of this function:

    m(t) = (λ/ λ-T)^a

    (a is alpha, couldn't find the symbol lol)

    If anyone could help me or give me some support for this question it would be greatly appreciated!

    Thank you all =)
    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 Rure View Post
    I'm trying to find the MGF of the gamma distribution. But I can't find seem to find a way with the MGF.

    I need to find the mean and variance of the gamma random variable of this function:

    m(t) = (λ/ λ-T)^a

    (a is alpha, couldn't find the symbol lol)

    If anyone could help me or give me some support for this question it would be greatly appreciated!

    Thank you all =)
    So what are you trying to do. Find the mgf of a random variable that follows a gamma distribution? Or use the mgf to get the mean and variance?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Oct 2010
    Posts
    2
    Sorry, I didn't make my question clear,
    I'm trying to find the mean and variance of a gamma random variable. And I'm using the mgf of the gamma distribution to find it.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by Rure View Post
    Sorry, I didn't make my question clear,
    I'm trying to find the mean and variance of a gamma random variable. And I'm using the mgf of the gamma distribution to find it.
    The mgf is given here: Gamma distribution - Wikipedia, the free encyclopedia

    From it, you can calculate E(X) and E(X^2) in the usual way. From which Var(X) follows. Where are you stuck in doing this?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Bit of help, struggling with this.
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: April 20th 2010, 11:47 PM
  2. struggling with this advection problem
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: January 18th 2010, 02:36 PM
  3. log problem I am struggling with
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: December 11th 2007, 12:26 PM
  4. logarithmic problem still struggling
    Posted in the Algebra Forum
    Replies: 2
    Last Post: February 1st 2007, 11:33 AM
  5. Problem I have been struggling with
    Posted in the Trigonometry Forum
    Replies: 5
    Last Post: January 18th 2006, 10:58 PM

Search Tags


/mathhelpforum @mathhelpforum