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Re: Determining if samples are normal
From: |
Przemek Klosowski |
Subject: |
Re: Determining if samples are normal |
Date: |
Mon, 26 Sep 2005 14:36:30 -0400 (EDT) |
Sorry, to jump in where I have very little knowledge and
understanding, but doesn't the sum preserve the
distribution? Seems counter intuitive to have the sum
change the distribution if it's identical. Isn't it
multiply that makes it triangular?
No, check for yourself by doing hist(rand(1e5,1)+rand(1e5,1),100).
Read http://en.wikipedia.org/wiki/Probability_distributions: "The
probability distribution of the sum of two random variables is the
convolution of each of their distributions."
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- Re: Determining if samples are normal, (continued)
- Re: Determining if samples are normal, Doug Stewart, 2005/09/25
- Re: Determining if samples are normal, Søren Hauberg, 2005/09/25
- Re: Determining if samples are normal, Robert A. Macy, 2005/09/25
- Re: Determining if samples are normal, Przemek Klosowski, 2005/09/26
- Re: Determining if samples are normal, Robert A. Macy, 2005/09/26
- Re: Determining if samples are normal, Quentin Spencer, 2005/09/26
- Re: Determining if samples are normal, Mike Miller, 2005/09/26
- Re: Determining if samples are normal,
Przemek Klosowski <=
- Re: Determining if samples are normal, Robert A. Macy, 2005/09/26
- Re: Determining if samples are normal, Mike Miller, 2005/09/26
- Re: Determining if samples are normal, Raymond E. Rogers, 2005/09/26
- Re: Determining if samples are normal, Mike Miller, 2005/09/27
- Re: Determining if samples are normal, Michael Creel, 2005/09/27
- Re: Determining if samples are normal, Paul Koufalas, 2005/09/27
- Re: Determining if samples are normal, Mike Miller, 2005/09/27
- Re: Determining if samples are normal, Mike Miller, 2005/09/26
- Message not available
- Re: Determining if samples are normal, Mike Miller, 2005/09/26
Re: Determining if samples are normal, Joe Koski, 2005/09/25