Arithmetic mean
the mean obtained by adding several quant-ties together and dividing the sum by the number of quant-ties:
the arithmetic mean of 1, 5, 2, and 8 is 4.
historical examples
then it will be sufficient to take the arithmetic mean of the two adjustments.
the foundations of science: science and hypothesis, the value of science, science and method henri poincar
in the construction of such an index number the use of the arithmetic mean is not imperative.
readings in money and banking chester arthur phillips
the usual method is to take the arithmetic mean of the values obtained as the correct value.
the new gresham encyclopedia various
if, first, we take the arithmetic mean of these limits, we get 117 millions of years.
the birth-time of the world and other scientific essays j. (john) joly
noun
an average value of a set of integers, terms, or quant-ties, expressed as their sum divided by their number: the arithmetic mean of 3, 4, and 8 is 5 often shortened to mean also called average compare geometric mean
arithmetic mean a·rith·me·tic mean (ə-rĭth’mĭ-tĭk)
n.
the value obtained by calculating the sum of a set of quant-ties and then dividing that sum by the number of quant-ties in the set. also called average.
arithmetic mean
(ār’ĭth-mět’ĭk)
the value obtained by dividing the sum of a set of quant-ties by the number of quant-ties in the set. for example, if there are three test scores 70, 83, and 90, the arithmetic mean of the scores is their sum (243) divided by the number of scores (3), or 81. see more at mean. compare average, median, mode.
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.
(2007-03-20)
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