Precision refers to the degree of exactness or accuracy in measurements or calculations. It indicates how closely multiple measurements of the same quantity agree with each other. For example, if a scientist measures the length of a table several times and consistently gets the same result, those measurements are considered precise. In various fields, such as engineering and medicine, precision is crucial for ensuring reliable outcomes. High precision can lead to better quality products and more effective treatments. However, precision alone does not guarantee correctness; it must be combined with accuracy to achieve the desired results.