Average (Mean)
Computes the arithmetic mean of a list of numbers: sum / count.
Mean
20,00
Count
3
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Formula
arithmetic mean = sum / n
Example: (10 + 20 + 30) / 3 = 20
Methodology
Arithmetic mean = sum of values / count of values.
Example
Grades 1, 2, 1, 3: mean = 7/4 = 1.75.