Question

the average mass was 5.928 g and the range was 3.417 g. the accepted value was 7.510 g.
which words describe the accuracy and precision of this data set?

1. accurate and precise
2. accurate, but not precise
3. not accurate, but precise
4. neither accurate nor precise

Explanation:

how close the measured value is to the accepted value. The average mass (5.928 g) is far from the accepted value (7.510 g), so the data is not accurate.

• Precision refers to how close the measured values are to each other, which is related to the range (a smaller range means higher precision). A range of 3.417 g is relatively large, indicating the values are not close to each other, so the data is not precise.

Answer:

1. neither accurate nor precise