Differentiate between accuracy and precision with a simple lab example.

Differentiate between accuracy and precision with a simple lab example.

• A. Accuracy is how close a measurement is to the true value; precision is how close repeated measurements are to each other. Example: a scale that repeatedly reads 9.8 g when the true mass is 9.8 g is both accurate and precise.
• B. Accuracy is the instrument brand; precision is the cost.
• C. Accuracy and precision are the same concept.
• D. Accuracy describes how fast a measurement is; precision describes how many decimal places the result has.

Answer: (A)