uncertainties

Question 1

what is precision

Answer 1

Precision indicates the closeness of two or more measurements to each other that have been obtained in exactly the same way. It describes the repeatability of measurements. Random errors are the errors of precision.

Question 2

what is accuracy

Answer 2

Accuracy indicates the closeness of the measurement to its accepted value. It measures the agreement between experimental / measured value and its accepted value, which can be determined by calculating the percentage error. Systematic errors affect the accuracy of a measurement