Absolute uncertainty is the plus-or-minus amount attached to a measured quantity and is written in the same units as that quantity. Relative uncertainty expresses the uncertainty as a fraction or percentage of the measured value, obtained by dividing the absolute uncertainty by the measured quantity, making it dimensionless.
Conditions: Applies to a measured quantity with a nonzero value when forming the relative ratio.; The absolute uncertainty is expressed in the same units as the measured quantity.
Absolute uncertainty is the plus-or-minus amount attached to a measured quantity and is written in the same units as that quantity. Relative uncertainty expresses the uncertainty as a fraction or percentage of the measured value, obtained by dividing the absolute uncertainty by the measured quantity, making it dimensionless.
Conditions: Applies to a measured quantity with a nonzero value when forming the relative ratio.; The absolute uncertainty is expressed in the same units as the measured quantity.