Final answer:
The uncertainty of the length measurement is 0.05 cm and the uncertainty of the mass measurement is 0.5 g.
Step-by-step explanation:
To determine the uncertainty of each measurement, we need to consider the precision of the measurements. Precision refers to the degree of exactness or refinement in a measurement.
In this case, we have a measurement of 61.5 cm for the length of the rainbow trout and a measurement of 2.35 kg for its mass.
Since the measurement for the length is given to the nearest 0.1 cm, we can consider the uncertainty as half of the smallest unit, which is 0.05 cm.
For the mass measurement, we don't have information about the precision.
If we assume it is given to the nearest gram, then the uncertainty would be 0.5 g.
In summary, the uncertainty for the length measurement is 0.05 cm and the uncertainty for the mass measurement is 0.5 g.