Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Install
Faster access than browser!
 

Arithmetic mean

+ Save concept

In mathematics and statistics, the arithmetic mean (stress on third syllable of "arithmetic"), or simply the mean or average when the context is clear, is the sum of a collection of numbers divided by the number of numbers in the collection. [1]

39 relations: Angle, Arithmetic progression, Average, Bias of an estimator, Central tendency, Degree (angle), Errors and residuals, Experiment (probability theory), Fréchet mean, Generalized mean, Geometric mean, Harmonic mean, Income distribution, Log-normal distribution, Mathematics, Mean, Median, Mode (statistics), Normal distribution, Outlier, Per capita income, Probability, Probability distribution, Radian, Robust statistics, Root-mean-square deviation, Sample mean and covariance, Sampling (statistics), Skewness, Sociology, Standard error, Statistical dispersion, Statistical population, Statistics, Summary statistics, Summation, Survey methodology, Viz., W. H. Freeman and Company.

Angle

In plane geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

New!!: Arithmetic mean and Angle · See more »

Arithmetic progression

In mathematics, an arithmetic progression (AP) or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.

New!!: Arithmetic mean and Arithmetic progression · See more »

Average

In colloquial language, an average is a middle or typical number of a list of numbers.

New!!: Arithmetic mean and Average · See more »

Bias of an estimator

In statistics, the bias (or bias function) of an estimator is the difference between this estimator's expected value and the true value of the parameter being estimated.

New!!: Arithmetic mean and Bias of an estimator · See more »

Central tendency

In statistics, a central tendency (or measure of central tendency) is a central or typical value for a probability distribution.

New!!: Arithmetic mean and Central tendency · See more »

Degree (angle)

A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle, defined so that a full rotation is 360 degrees.

New!!: Arithmetic mean and Degree (angle) · See more »

Errors and residuals

In statistics and optimization, errors and residuals are two closely related and easily confused measures of the deviation of an observed value of an element of a statistical sample from its "theoretical value".

New!!: Arithmetic mean and Errors and residuals · See more »

Experiment (probability theory)

In probability theory, an experiment or trial (see below) is any procedure that can be infinitely repeated and has a well-defined set of possible outcomes, known as the sample space.

New!!: Arithmetic mean and Experiment (probability theory) · See more »

Fréchet mean

In mathematics and statistics, the Fréchet mean is a generalization of centroids to metric spaces, giving a single representative point or central tendency for a cluster of points.

New!!: Arithmetic mean and Fréchet mean · See more »

Generalized mean

In mathematics, generalized means are a family of functions for aggregating sets of numbers, that include as special cases the Pythagorean means (arithmetic, geometric, and harmonic means).

New!!: Arithmetic mean and Generalized mean · See more »

Geometric mean

In mathematics, the geometric mean is a mean or average, which indicates the central tendency or typical value of a set of numbers by using the product of their values (as opposed to the arithmetic mean which uses their sum).

New!!: Arithmetic mean and Geometric mean · See more »

Harmonic mean

In mathematics, the harmonic mean (sometimes called the subcontrary mean) is one of several kinds of average, and in particular one of the Pythagorean means.

New!!: Arithmetic mean and Harmonic mean · See more »

Income distribution

In economics, income distribution is how a nation’s total GDP is distributed amongst its population.

New!!: Arithmetic mean and Income distribution · See more »

Log-normal distribution

In probability theory, a log-normal (or lognormal) distribution is a continuous probability distribution of a random variable whose logarithm is normally distributed.

New!!: Arithmetic mean and Log-normal distribution · See more »

Mathematics

Mathematics (from Greek μάθημα máthēma, "knowledge, study, learning") is the study of such topics as quantity, structure, space, and change.

New!!: Arithmetic mean and Mathematics · See more »

Mean

In mathematics, mean has several different definitions depending on the context.

New!!: Arithmetic mean and Mean · See more »

Median

The median is the value separating the higher half of a data sample, a population, or a probability distribution, from the lower half.

New!!: Arithmetic mean and Median · See more »

Mode (statistics)

The mode of a set of data values is the value that appears most often.

New!!: Arithmetic mean and Mode (statistics) · See more »

Normal distribution

In probability theory, the normal (or Gaussian or Gauss or Laplace–Gauss) distribution is a very common continuous probability distribution.

New!!: Arithmetic mean and Normal distribution · See more »

Outlier

In statistics, an outlier is an observation point that is distant from other observations.

New!!: Arithmetic mean and Outlier · See more »

Per capita income

Per capita income or average income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year.

New!!: Arithmetic mean and Per capita income · See more »

Probability

Probability is the measure of the likelihood that an event will occur.

New!!: Arithmetic mean and Probability · See more »

Probability distribution

In probability theory and statistics, a probability distribution is a mathematical function that provides the probabilities of occurrence of different possible outcomes in an experiment.

New!!: Arithmetic mean and Probability distribution · See more »

Radian

The radian (SI symbol rad) is the SI unit for measuring angles, and is the standard unit of angular measure used in many areas of mathematics.

New!!: Arithmetic mean and Radian · See more »

Robust statistics

Robust statistics are statistics with good performance for data drawn from a wide range of probability distributions, especially for distributions that are not normal.

New!!: Arithmetic mean and Robust statistics · See more »

Root-mean-square deviation

The root-mean-square deviation (RMSD) or root-mean-square error (RMSE) (or sometimes root-mean-squared error) is a frequently used measure of the differences between values (sample or population values) predicted by a model or an estimator and the values observed.

New!!: Arithmetic mean and Root-mean-square deviation · See more »

Sample mean and covariance

The sample mean or empirical mean and the sample covariance are statistics computed from a collection (the sample) of data on one or more random variables.

New!!: Arithmetic mean and Sample mean and covariance · See more »

Sampling (statistics)

In statistics, quality assurance, and survey methodology, sampling is the selection of a subset (a statistical sample) of individuals from within a statistical population to estimate characteristics of the whole population.

New!!: Arithmetic mean and Sampling (statistics) · See more »

Skewness

In probability theory and statistics, skewness is a measure of the asymmetry of the probability distribution of a real-valued random variable about its mean.

New!!: Arithmetic mean and Skewness · See more »

Sociology

Sociology is the scientific study of society, patterns of social relationships, social interaction, and culture.

New!!: Arithmetic mean and Sociology · See more »

Standard error

The standard error (SE) of a statistic (usually an estimate of a parameter) is the standard deviation of its sampling distribution or an estimate of that standard deviation.

New!!: Arithmetic mean and Standard error · See more »

Statistical dispersion

In statistics, dispersion (also called variability, scatter, or spread) is the extent to which a distribution is stretched or squeezed.

New!!: Arithmetic mean and Statistical dispersion · See more »

Statistical population

In statistics, a population is a set of similar items or events which is of interest for some question or experiment.

New!!: Arithmetic mean and Statistical population · See more »

Statistics

Statistics is a branch of mathematics dealing with the collection, analysis, interpretation, presentation, and organization of data.

New!!: Arithmetic mean and Statistics · See more »

Summary statistics

In descriptive statistics, summary statistics are used to summarize a set of observations, in order to communicate the largest amount of information as simply as possible.

New!!: Arithmetic mean and Summary statistics · See more »

Summation

In mathematics, summation (capital Greek sigma symbol: ∑) is the addition of a sequence of numbers; the result is their sum or total.

New!!: Arithmetic mean and Summation · See more »

Survey methodology

A field of applied statistics of human research surveys, survey methodology studies the sampling of individual units from a population and associated techniques of survey data collection, such as questionnaire construction and methods for improving the number and accuracy of responses to surveys.

New!!: Arithmetic mean and Survey methodology · See more »

Viz.

The abbreviation viz. (or viz without a full stop), short for the Latin italic, is used as a synonym for "namely", "that is to say", "to wit", or "as follows".

New!!: Arithmetic mean and Viz. · See more »

W. H. Freeman and Company

W.

New!!: Arithmetic mean and W. H. Freeman and Company · See more »

Redirects here:

Arithmetic Mean, Arithmetical mean, Averaged, Mean (average), Mean average, Sample means, Standard mean, Statistical mean, .

References

[1] https://en.wikipedia.org/wiki/Arithmetic_mean

OutgoingIncoming
Hey! We are on Facebook now! »