Main entry(ies)
- arithmetic average
- arithmetic mean
Secondary entry(ies)
- average / arithmetic
- mean / arithmetic
Term in context
The average1 or mean1 most frequently used in demography is the arithmetic average2 or arithmetic mean2 which consists of the sum of a number of quantities divided by their number. Where the term average or mean is used without further qualification the arithmetic average is generally meant. The geometric mean3 or geometric average3 is sometimes used to estimate the total population in the middle of a period for which the population at either end is given; it is the square root of the product of the two end populations, A weighted average4 or weighted mean4 is obtained when different items are given varying importance by multiplying each item by a particular weight5. The median6 is the value of the element which divides a set7 of observations into two halves. The mode8 is the most common or most frequent value of a set of observations
Footnotes
8 mode n. — modal adj.
