Precision
Structure of Matter > Chemical Calculations
- In case A we can observe high precision.
- In case B we can observe low precision.
It is the degree of agreement between replicate measurements of the same quantity i.e., it is the repeatability of a result.
It may be expressed in terms of standard deviation, mean of all measurements etc. Precision always accompanies accuracy, but a high degree of precision does not imply accuracy.
Precision is the degree of exactness with which an object is measured.