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 value of the absolute deviations of each measurement from the average for the second set.

FREE Expert Solution

Step 1

absolute deviation = | true value - experimental value|

(1) absolute deviation = |22.52 - 22.64| = 0.12

(2) absolute deviation = |22.52 - 22.58| = 0.06

(3) absolute deviation = |22.52 - 22.62| = 0.1


Step 2

average = sum of the measurementnumber of measurement


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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 value of the absolute deviations of each measurement from the average for the second set.

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

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