arithmetic mean


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Wikipedia.

arithmetic mean

an average value of a set of integers, terms, or quantities, expressed as their sum divided by their number

arithmetic mean

[¦a·rith¦med·ik ′mēn]
(mathematics)
The average of a collection of numbers obtained by dividing the sum of the numbers by the quantity of numbers. Also known as arithmetic average; average (av).

arithmetic mean

(mathematics)
The mean of a list of N numbers calculated by dividing their sum by N. The arithmetic mean is appropriate for sets of numbers that are added together or that form an arithmetic series. If all the numbers in the list were changed to their arithmetic mean then their total would stay the same.

For sets of numbers that are multiplied together, the geometric mean is more appropriate.
References in periodicals archive ?
The table shows that the 'Consumer Satisfaction' dimension scored an arithmetic mean of (4.04) and a standard deviation of (0.55), which indicates that Consumer Satisfaction level was high according to questionnaire respondents.
It can be seen (Table VIII) that the experimental (E) group in the final measurement showed statistically significant improvements in the most of the outcome variables compared with the arithmetic mean of the initial measurement.
Other than that, one of the conventional aggregation operators which is arithmetic mean also received attention from many scholars.
Marcus (2003), "Geometric or arithmetic mean: A reconsideration," Financial Analysts Journal 59(6): 46-53.
It is also possible to establish that the arithmetic mean of two consecutive odd numbers is even.
In sum, the CPI is a measure of price change across a set of goods and services purchased by urban consumers and is calculated with the use of a combination of geometric and arithmetic means that can capture some degree of consumer substitution limited to goods and services within item groups.
[[??].sub.exp] and [[??].sub.p] are called multiplicative weighted arithmetic mean and weighted p-arithmetic mean, respectively.
According to the aggregation method based on integrated arithmetic mean, the combined judgment matrix [A.sub.*] is the arithmetic mean of the original judgment matrix.
Another issue is the relationship between the geometric mean and the arithmetic mean for a positive random variable.
Table 3 shows no significant difference in computer self-efficacy perception of trainees by PC ownership, despite the arithmetic means of the students who own computers being relatively higher than those who do not.
[H.sub.0]: We suppose that arithmetic mean of social network utilization frequency by finding new business contacts and job opportunities from the point of view of male is equal to arithmetic mean of social network utilization frequency by mentioned purpose from the point of view of female and at the same time we assume that the difference between them, if it exists, is caused only by coincident variation of selection results.
By contrast, in group B--where the two workers have wages 60% above and below the group's arithmetic mean--the arithmetic mean is substantially larger than the geometric means.