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average canculation
The '''average''' is the sum of a group of numbers divided by the number of values in the group. For example, the average of 3, 5, and 7 is <math>15 \div 3=5</math>.
The '''average''' is the sum of a group of numbers divided by the number of values in the group. For example, the average of 3, 5, and 7 is <math>(3+5+7) \div 3=15 \div 3=5</math>.
Another term for average is the [[arithmetic mean]].
Another term for average is the [[arithmetic mean]].