mathematics and statistics, the arithmetic mean ( /ˌærɪθˈmɛtɪk/ arr-ith-MET-ik), arithmetic average, or just the mean or average (when the context is...
13 KB (1,988 words) - 12:35, 5 November 2024
The weighted arithmetic mean is similar to an ordinary arithmetic mean (the most common type of average), except that instead of each of the data points...
44 KB (8,992 words) - 05:02, 22 November 2024
the product of their values (as opposed to the arithmetic mean which uses their sum). The geometric mean of n {\displaystyle n} numbers is the nth...
30 KB (4,490 words) - 02:02, 19 November 2024
purpose. The arithmetic mean, also known as "arithmetic average", is the sum of the values divided by the number of values. The arithmetic mean of a set of...
17 KB (2,199 words) - 03:42, 11 November 2024
quasi-arithmetic mean or generalised f-mean or Kolmogorov-Nagumo-de Finetti mean is one generalisation of the more familiar means such as the arithmetic mean...
11 KB (1,933 words) - 16:25, 8 October 2024
AM–GM inequality (redirect from Arithmetic mean-geometric mean inequality)
mathematics, the inequality of arithmetic and geometric means, or more briefly the AM–GM inequality, states that the arithmetic mean of a list of non-negative...
40 KB (8,013 words) - 16:51, 20 November 2024
arguments. The harmonic mean is the reciprocal of the arithmetic mean of the reciprocals of the numbers, that is, the generalized f-mean with f ( x ) = 1 x...
37 KB (5,870 words) - 10:17, 15 November 2024
mathematics, the arithmetic–geometric mean (AGM or agM) of two positive real numbers x and y is the mutual limit of a sequence of arithmetic means and a sequence...
17 KB (2,935 words) - 16:03, 13 July 2024
contraharmonic mean of a set of positive real numbers is defined as the arithmetic mean of the squares of the numbers divided by the arithmetic mean of the numbers:...
12 KB (1,781 words) - 07:56, 15 October 2024
the late 1920s. The most common measures of central tendency are the arithmetic mean, the median, and the mode. A middle tendency can be calculated for...
13 KB (1,720 words) - 13:56, 19 August 2024
x_{n}}}} arithmetic mean M 1 ( x 1 , … , x n ) = x 1 + ⋯ + x n n {\displaystyle M_{1}(x_{1},\dots ,x_{n})={\frac {x_{1}+\dots +x_{n}}{n}}} root mean square...
16 KB (3,363 words) - 15:21, 7 October 2024
and Hermann Karcher. On the real numbers, the arithmetic mean, median, geometric mean, and harmonic mean can all be interpreted as Fréchet means for different...
4 KB (752 words) - 16:49, 27 May 2024
vector mean is arctan(1/2) = 26.565°. Moreover, with the arithmetic mean the circular variance is only defined ±180°. Since the arithmetic mean is not...
9 KB (1,604 words) - 12:03, 23 May 2024
Average (category Arithmetic functions)
list of numbers is the arithmetic mean – the sum of the numbers divided by how many numbers are in the list. For example, the mean average of the numbers...
29 KB (3,232 words) - 16:32, 16 November 2024
statistics, the weighted geometric mean is a generalization of the geometric mean using the weighted arithmetic mean. Given a sample x = ( x 1 , x 2 …...
1 KB (213 words) - 02:17, 23 May 2024
positive numbers x, y. The logarithmic mean of two numbers is smaller than the arithmetic mean and the generalized mean with exponent greater than 1. However...
9 KB (1,661 words) - 13:48, 30 September 2024
In mathematics and its applications, the mean square is normally defined as the arithmetic mean of the squares of a set of numbers or of a random variable...
2 KB (257 words) - 15:09, 18 September 2024
GMT is the annual average (the arithmetic mean) moment of this event, which accounts for the word "mean" in "Greenwich Mean Time". Originally, astronomers...
21 KB (2,461 words) - 14:46, 22 November 2024
Earth radius (redirect from Terran mean radius)
International Union of Geodesy and Geophysics (IUGG) defines the Earth's arithmetic mean radius (denoted R1) to be R 1 = 2 a + b 3 {\displaystyle R_{1}={\frac...
42 KB (4,383 words) - 12:40, 3 September 2024
geometric–arithmetic mean, A(x, y) is the arithmetic mean. Arithmetic–geometric mean Arithmetic–harmonic mean Mean Weisstein, Eric W. "Harmonic-Geometric Mean"...
3 KB (453 words) - 11:54, 10 May 2021
calculated as the arithmetic mean (average) time between failures of a system. The term is used for repairable systems while mean time to failure (MTTF)...
19 KB (2,994 words) - 22:03, 15 August 2024
QM-AM-GM-HM inequalities (redirect from Mean inequality chain)
mean inequality chain, state the relationship between the harmonic mean, geometric mean, arithmetic mean, and quadratic mean (also known as root mean...
5 KB (784 words) - 14:17, 26 September 2024
of values (or a continuous-time waveform) is the square root of the arithmetic mean of the squares of the values, or the square of the function that defines...
18 KB (2,649 words) - 04:42, 19 November 2024
relative mean absolute difference, which is the mean absolute difference divided by the arithmetic mean, and equal to twice the Gini coefficient. The mean absolute...
13 KB (1,496 words) - 23:09, 12 November 2024
minimizer of the mean absolute error with respect to X. In particular, m is a sample median if and only if m minimizes the arithmetic mean of the absolute...
8 KB (1,074 words) - 22:32, 2 April 2024
Pythagorean means (redirect from Pythagorean mean)
three classical Pythagorean means are the arithmetic mean (AM), the geometric mean (GM), and the harmonic mean (HM). These means were studied with proportions...
8 KB (1,101 words) - 16:49, 20 October 2024
The arithmetic mean of a population, or population mean, is often denoted μ. The sample mean x ¯ {\displaystyle {\bar {x}}} (the arithmetic mean of a...
13 KB (2,206 words) - 10:24, 20 March 2024
standard deviation and the population mean is estimated by the sample mean (also called mean or arithmetic mean). To account for these estimations, the...
38 KB (5,288 words) - 18:36, 30 July 2024
Semicircle (section Arithmetic and geometric means)
the length of its radius is the arithmetic mean of a and b (since the radius is half of the diameter). The geometric mean can be found by dividing the diameter...
5 KB (598 words) - 06:32, 13 November 2024
UPGMA (redirect from Unweighted Pair Group Method with Arithmetic mean)
UPGMA (unweighted pair group method with arithmetic mean) is a simple agglomerative (bottom-up) hierarchical clustering method. It also has a weighted...
17 KB (2,430 words) - 07:09, 9 July 2024