Let me tell you one more way to interpret precision, it's a measure of instrument to reproduce same readings during trials. > The term precision is used to describe the degree of freedom of a measurement system from random errors. Thus, a high precision measurement instrument will give only a small spread of readings if repeated readings are taken of the same quantity.([source][1]) There can be many ways to say a same thing but essence remains unchanged, here essence of word *precision* is ability to be precise. Precise comes from Latin praecis- ‘cut short’, it's how *sharply* a instrument can measure something. If a tool lacks precision readings will vary with each trial, whereas a precise tool will generate identical readings maximum times. A precise instrument may or may not give correct readings. Ability to give correct measurement is called accuracy. A accurate instrument may not be precise. Accuracy is many times confused with precision, here is a good illustration. [![accuracy vs precision][2]][2] [1]: https://www.sciencedirect.com/topics/engineering/precision-instrument#:~:text=The%20term%20precision%20is%20used,taken%20of%20the%20same%20quantity. [2]: https://i.sstatic.net/YnJsO.png