Question

a micropipette is being used to obtain 23 micrograms of solution. each time it is able to obtain the correct amount.
just accurate
just precise
accurate and precise
not accurate and not precise

Explanation:

Accuracy refers to how close a measurement is to the true or accepted value. Precision refers to how close repeated measurements are to each other. Since the micropipette obtains the correct amount (23 micrograms) each time, it is both getting the right value (accurate) and getting the same value consistently (precise).

Answer:

C. Accurate and Precise