# Recent content by michu

1. ### 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. ### 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. ### 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. ### 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...