# 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, 22.62Which set is more precise?

###### FREE Expert Solution

We are asked which set is more precise.

Accuracy is the closeness of the measurements to a specific value, while precision is the closeness of the measurements to each other.

81% (120 ratings) ###### 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

Which set is more precise?

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