daniel added a comment. Here is another take on the 1 vs 0.5 issue, from //Uncertainties and Significant Figures// http://facultyfiles.deanza.edu/gems/lunaeduardo/UncertaintyandSignificantFig.pdf (a random find, not an authoritative source):
> > > 1. Uncertainty in a Scale Measuring Device is equal to the smallest increment > divided by 2. > 2. Uncertainty in a Digital Measuring Device is equal to the smallest > increment. > > Ex. Meter Stick (scale device): σ_x = 1mm/2 = 0.5mm = 0.05cm > > Ex. Digital Balance (digital device): `0.7513kg` σ_x = 0.0001kg > > For example, if we measure a length of 5.7 cm with a meter stick, this > implies that the length can be anywhere in the range 5.65 cm ≤ L ≤ 5.75 cm. > Thus, L =5 .7 cm measured with a meter stick implies an uncertainty of 0.05 > cm. A common rule of thumb is to take one-half the unit of the last decimal > place in a measurement to obtain the uncertainty. TASK DETAIL https://phabricator.wikimedia.org/T105623 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: daniel Cc: Jonas, JanZerebecki, harej-NIOSH, Thryduulf, Mike_Peel, Jc3s5h, thiemowmde, kaldari, daniel, Stryn, Lydia_Pintscher, Liuxinyu970226, Snipre, Event, Ash_Crow, mgrabovsky, Micru, Denny, He7d3r, Bene, Wikidata-bugs, Ricordisamoa, Kelson, MSGJ, Wolfvoll, Aklapper, aude _______________________________________________ Wikidata-bugs mailing list Wikidata-bugs@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
