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› cpk123

cpk123

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@cpk123

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  • in reply to: Confusion on the Standard Deviation in Domestic Currency #78062
    Avatar of cpk123cpk123
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      24 Sep 2017 at 9:18 pm
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      ::

      the formula is using the concept of
      if a random variable v has a SD of x
      another random variable that is k * v has a SD of k * x.

      its variance will be k^2 * x*2

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