| 释义 |
arithmetic mean
ar·ith·met·ic mean (ăr′ĭth-mĕt′ĭk)n. The value obtained by dividing the sum of a set of quantities by the number of quantities in the set. Also called average.arithmetic mean n (Mathematics) an average value of a set of integers, terms, or quantities, 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 ar′ithmet′ic mean′
n. the mean obtained by adding several quantities together and dividing the sum by the number of quantities: The arithmetic mean of 1, 5, 2, and 8 is 4. Also called average. ar·ith·met·ic mean (ăr′ĭth-mĕt′ĭk) The value obtained by dividing the sum of a set of quantities by the number of quantities 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.Thesaurus| Noun | 1. |  arithmetic mean - the sum of the values of a random variable divided by the number of valuesexpected value, first moment, expectationstatistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parametersmean, mean value - an average of n numbers computed by adding some function of the numbers and dividing by some function of n |
Translationsarithmetic mean
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 bydividing their sum by N. The arithmetic mean is appropriatefor sets of numbers that are added together or that form anarithmetic series. If all the numbers in the list werechanged to their arithmetic mean then their total would staythe same.
For sets of numbers that are multiplied together, thegeometric mean is more appropriate.arithmetic mean
a·rith·me·tic meanthe mean calculated by adding a set of values and then dividing the sum by the number of values.mean Statistics
noun The sum of the values of all observations or data points divided by the number of observations; an arithmetical average; the central tendency of a collection of numbers, which is a sum of the numbers divided by the amount of numbers the collection.
Types
• Population mean (µ).
• Sample mean (x-bar).
Vox populi-UK
adjective Stingy; miserly; unwilling to share.
Vox populi-US
adjective Unkind, spiteful.arith·me·tic mean (ar'ith-met'ik mēn) The mean calculated by adding a set of values and then dividing the sum by the number of values.
Synonym(s): average (2) .  Fig. 47 Arithmetic mean . In this example, the mean (x) of 4 values of x is 11. arithmetic mean or mean a number (symbol: x) that is computed by calculating the sum of a set of numbers (Σx ) and dividing the sum by the number of terms (n ).LegalSeeMeanFinancialSeeArithmetic Mean AverageAcronymsSeeairmailarithmetic mean
Related to arithmetic mean: geometric mean, Arithmetic sequence, Weighted arithmetic meanSynonyms for arithmetic meannoun the sum of the values of a random variable divided by the number of valuesSynonyms- expected value
- first moment
- expectation
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