Question

How can precision be measured?

Answer 1

Maybe by `sigma_d`, `"the standard deviation..."`

Explanation:

As you should know, `"accuracy"` refers to the closeness of a measurement to the TRUE value; whereas `"precision"` refers to the repeatability of a measurement. Precise measurements may be inaccurate due to some systematic error, and accurate measurements may be imprecise given the scatter, i.e. the range of a series of measurements.

You will introduced to a range of ways of dealing with error in your analytical chemistry text. This will also include formal definitions of `sigma_d`...