[Nodes Of Ranvier]

For example, if a micrometer was measuring to the nearest 0.01mm would the uncertainty of one reading be 0.01mm or would it be 0.005mm which is half of the precision of the micrometer?

I have heard both answers but I'm not sure which one is right?

Thanks

EDIT also say if the percentage uncertainty of X was 3% then what would the percentage uncertainty of 5X be?

[a.partridge]

well depends what type of thing you are measuring with it.

in the simplest case where it's a completely simple and perfect 'block' i'd go for plus-minus 0.005

otherwise you could do repeats and look at standard deviation, standard error in the mean etc : )

it's not set in stone