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  1. M

    standard deviation of a division

    Hi katxt, Thanks a lot for that beginners course in statistics, I think all is clear and the standard error of my division of 0.08 makes sense! Best, Michu
  2. M

    standard deviation of a division

    Hi kat, thanks a lot for your reply. however, under this link in the table for the different formulae it is written that a is the standard deviation of A and not the standard error: https://en.wikipedia.org/wiki/Propagation_of_uncertainty Could you shine some light on this? thanks and best, M
  3. M

    standard deviation of a division

    hi katxt, thanks a lot for your reply! our a/A and b/B are not that small, 25 and 31 %, respectively, so the approximation might not be great. However, A and B are not that far from having a normal distribution, so your idea seems cool! And I agree that observing the fruits one by one would be...
  4. M

    standard deviation of a division

    Hi, I have a rather easy question: I have a batch of different dried fruits, let's say n=100, with a diameter of 8±2 cm, 2 being the standard deviation. After throwing them in water the distribution of the batch's diameters is let's say 16±5 cm because of the swelling. This results in a size...