
#1
Feb1614, 01:54 AM

P: 52

Hi I saw something in Wikipedia and I am confused. I saw something like this
2.0 cm /+ 0.05 cm Whats that mean? My first opinion Between 1,5 and 2,5 My second opinion 1,5 cm or 2,5 cm 



#2
Feb1614, 03:10 AM

P: 246





#3
Feb1614, 04:33 AM

Sci Advisor
Thanks
P: 2,972





#4
Feb1614, 07:55 AM

P: 13

Measurement Problem
I think of the +/ as the uncertainty in the measurement in a statistical sense. This may be a subtlety different view to that posted above. I don't interpret those bounds as definitely encompassing the 'true measurement'. Usually I'd take it to mean that there's a 68% chance (1 sigma) that the true measurement is in that range, assuming 'normal' statistics of course. Just my view, others may disagree!




#5
Feb1614, 11:33 AM

Mentor
P: 21,069




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