Results 1 to 2 of 2

Math Help - Poisson approximated by Normal for large numbers?

  1. #1
    Newbie
    Joined
    Oct 2008
    Posts
    10

    Poisson approximated by Normal for large numbers?

    Just a quick question:

    Am I correct in thinking that X~Poi(36) may be approximated using X~N(36,36)? What would be a sufficiently large number to do this?

    Cheers,

    Ivar
    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 Ivar_sb View Post
    Just a quick question:

    Am I correct in thinking that X~Poi(36) may be approximated using X~N(36,36)? What would be a sufficiently large number to do this?

    Cheers,

    Ivar
    It depends on what you are trying to do. For rough and ready calculations 10 will often do, 20 is better. Google for "error normal approximation poisson".

    CB
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. law of large numbers
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: February 12th 2011, 11:39 AM
  2. Weak law of large numbers and CF
    Posted in the Advanced Statistics Forum
    Replies: 3
    Last Post: February 11th 2010, 11:10 AM
  3. Law of Large Numbers
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: August 2nd 2009, 11:53 PM
  4. Using the weak law of large numbers
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: November 25th 2007, 01:23 AM
  5. The Strong Law of Large Numbers
    Posted in the Advanced Statistics Forum
    Replies: 5
    Last Post: November 18th 2005, 09:21 AM

Search Tags


/mathhelpforum @mathhelpforum