Answer :
If a given block of metal has a known mass of 110.2 g, and the mass is measured three times to get the following readings -100.2 g, 100.1 g, 100.3 g, then the average mass will be 100.2 g.
Mass is a quantity which is dimensionless. It represents amount of matter in any object. Average mass is known as the total sum of given masses divided by the number of times mass is measured.
Mathematically, average is the sum of all results in a sample divided by the total number of the items in sample.
Average mass = Sum of all the mass
Number of results(mass)
Therefore,
Average mass = (100.2 + 100.1 + 100.3) g
3
Average mass = 300.6 g
3
Average mass = 100.2 g
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