# Problem: 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, 22.542. 22.64, 22.58, 22.62Tell which set is the more accurate based on the average.

###### FREE Expert Solution

The average or mean can be calculated using the following equation:

Calculate the average percentage for each set of data:

###### Problem Details

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

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