Recent content by rano

  1. R

    Error propagation with averages and standard deviation

    Ok thank you for the clarification. I got mixed up because a few posts back the errors were additive rather than subtractive (but I see now the variables were switched). So we would report mean ± σX from your equation, where σX is the error propagated standard deviation of the population...
  2. R

    Error propagation with averages and standard deviation

    Ok thank you virtaltux. Sorry about the confusion with the original problem; I should have been more specific from the beginning. My interpretation of your analysis and final equation is that: σY = error propagated standard deviation of population (i.e. SD of sugar concentration between...
  3. R

    Error propagation with averages and standard deviation

    Thank you all for thinking about this problem. Haruspex is correct on both respects; first that I am interested in measuring the same sample multiple times, and also that the original scenario is simply a model. The real-life application of this is actually in biology, where for any given...
  4. R

    Error propagation with averages and standard deviation

    Hi viraltux, Thank you very much for your explanation. That was exactly what I was looking for. I really appreciate your help.
  5. R

    Error propagation with averages and standard deviation

    Hi viraltux and haruspex, Thank you for considering my question. I apologize for any confusion; I am in fact interested in the standard deviation of the population as haruspex deduced. I think a different way to phrase my question might be, "how does the standard deviation of a population...
  6. R

    Error propagation with averages and standard deviation

    I was wondering if someone could please help me understand a simple problem of error propagation going from multiple measurements with errors to an average incorporating these errors. I have looked on several error propagation webpages (e.g. UC physics or UMaryland physics) but have yet to find...
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