Re: Determining if samples are normal

[Przemek Klosowski]

   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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