- Concept Videos
- Solutions 9

Two students determine the percentage of lead in a sample as a laboratory exercise. The true percentage is 22.52%. The students’ results for three determinations are as follows:

1. 22.52, 22.48, 22.54

2. 22.64, 22.58, 22.62

(a) Calculate the average percentage for each set of data, and

state which set is the more accurate based on the average.