It is the sum of all of the numbers, divided by the number of numbers. For example, what is the arithmetic mean of this set of numbers: 8, 6, 4, 2 ? Add up the numbers: 8+6+4+2=20. The number of numbers is 4; so divide 20 by 4 to get 5, which is the arithmetic mean.
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The arithmetic mean is an average arrived at by adding all the terms together and then dividing by the number of terms.
1.The Geometric mean is less then the arithmetic mean. GEOMETRIC MEAN < ARITHMETIC MEAN 2.
The arithmetic mean is a weighted mean where each observation is given the same weight.
arithmetic mean
The difference between arithmetic and geometric mean you can find in the following link: "Calculation of the geometric mean of two numbers".