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, 22.62Calculate the average percentage for the first set of data.

FREE Expert Solution

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

average=sum of the measurementsnumber of measurements


Calculate the average percentage for each set of data:

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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

Calculate the average percentage for the first set of data.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Standard Deviation, Mean, Median & Mode concept. You can view video lessons to learn Standard Deviation, Mean, Median & Mode. Or if you need more Standard Deviation, Mean, Median & Mode practice, you can also practice Standard Deviation, Mean, Median & Mode practice problems.