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Math Help - How to calculate the arithmatic mean from geometric mean

  1. #1
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    How to calculate the arithmatic mean from geometric mean

    Hi all,

    I have geometric mean (GM)and geometric standard deviation (GSD).
    Is this possible to have an arithmetic mean from geometric mean/standard deviation?

    For instance, GM=2.5, GSD=1, how I could get the arithmetic mean and arithmetic standard deviation? Help me out!
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  2. #2
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    Re: How to calculate the arithmatic mean from geometric mean

    Hey jjooya.

    Can you outline the random variables for Geometric Means and Arithmetric Means?
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  3. #3
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    Re: How to calculate the arithmatic mean from geometric mean

    Hi Chiro,

    I don't know the random variables, either.
    I simply have GM=2.5 and GSD=1. My mission is to calculate the AM and ASD.

    Can I also calculate visa versa?
    For instance, I have AM=3 and ASD=2, then how can I calculate the GM and GSD?
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  4. #4
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    Re: How to calculate the arithmatic mean from geometric mean

    In order to calculate a mean and a variance you need a distribution of some kind or some information to link different sets of parameters together.

    if you can't tell me what the distribution refers to, then I don't have a chance of helping you.
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  5. #5
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    Re: How to calculate the arithmatic mean from geometric mean

    I appreciate your insight. I would start to find out the random variables (or distribution). Thanks again!
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