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Who gave the concept of arithmetic mean?

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Tycho Brahe is celebrated as being one of the first recorded to explicitly use the concept of the arithmetic mean, to reduce the sampling error in his astronomical observations. From what I remember, these observations were used to support Kepler's laws of planetary motion. So he probably knew what he was up to. read more

Indian mathematicians made early contributions to the study of the concept of zero as a number, negative numbers, arithmetic, and algebra. read more

The arithmetic mean or average of a set of values is the ratio of the sum of these values to the number of elements in the set. In other words, we add together the given values in a data set, and then divide that total by the number of given values. The arithmetic mean formula is given below. read more

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