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Calculate the standard deviation of Gaussian distribution ,thanks!

  1. Nov 2, 2014 #1
    Given a one-dimensional Gaussian distribution, distributed as following:

    f (x) = exp (-x ^ 2 / (2q)) / q / √ (2pi)

    proof which q is the standard deviation

    Thanks !!!!


    The standard deviation is defined by:
    http://www.mathsisfun.com/data/standard-deviation-formulas.html
     
  2. jcsd
  3. Nov 2, 2014 #2

    Stephen Tashi

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    Science Advisor

    That link defines the "sample standard deviation".

    The number 'q' is the "population standard deviation". The definition of "population standard deviation" ( which is the "standard deviation of a random variable") involves doing an integration. Are you familiar with calculus?
     
  4. Nov 2, 2014 #3

    berkeman

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    Staff: Mentor

    Misplaced schoolwork-type question with no effort shown. Thread is closed.
     
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