Question

Accurate what do you mean by accuracy and precision

Answer 1

Accuracy refers to the closeness of a measured value to a standard or known value. ...Precision refers to the closeness of two or more measurements to each other. Using the example above, if youweigh a given substance five times, and get 3.2 kg each time, then your measurement is veryprecise.


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Answer 2

In simplest terms, given a set of data points from repeated measurements of the same quantity, the set can be said to be precise if the values are close to each other, while the set can be said to be accurate if their average is close to the true value of the quantity being measured. The two concepts are independent of each other, so a particular set of data can be said to be either accurate, or precise, or both, or neither.