Question

the following measurements were made to determine the density of a material whose value was, according to the handbook of chemistry and physics, 1.15 g/ml.

trial 1	0.95 g/ml
trial 2	1.16 g/ml
trial 3	1.26 g/ml

what kind of precision does this display?

• high
• low

Explanation:

Precision refers to the closeness of repeated measurements. Here, the measurements are 0.95 g/mL, 1.16 g/mL, and 1.26 g/mL. The differences between these values are relatively large (e.g., 1.16 - 0.95 = 0.21, 1.26 - 1.16 = 0.10), indicating that the measurements are not close to each other. So, the precision is low.

Answer:

Low