**standard deviation** — n. Statistics a measure of variability equal to the square root of the arithmetic average of the squares of the deviations from the mean in a frequency distribution … English World dictionary

**Standard deviation** — In probability and statistics, the standard deviation is a measure of the dispersion of a collection of values. It can apply to a probability distribution, a random variable, a population or a data set. The standard deviation is usually denoted… … Wikipedia

**standard deviation** — A standard deviation tells us how much specific examples vary from the average in a particular set. Thus, the larger the standard deviation, the more diverse/volatile are the examples. The more volatile the examples, the less predictable and… … Financial and business terms

**Standard deviation** — The square root of the variance. A measure of dispersion of a set of data from their mean. The New York Times Financial Glossary * * * standard deviation standard deviation ➔ deviation * * * A statistical measure of the amount by which one… … Financial and business terms

**standard deviation** — (sd) a mathematical unit used to describe the spread or dispersion of a set of data. Each item in the data set has a deviation from the mean (the ordinary average) of the data. The standard deviation is computed by taking the squares of these… … Dictionary of units of measurement

**standard deviation** — UK / US noun [countable] Word forms standard deviation : singular standard deviation plural standard deviations maths a number that shows how much smaller or larger a number in a set of numbers is from the average of the set … English dictionary

**standard deviation** — noun the square root of the variance (Freq. 8) • Topics: ↑statistics • Hypernyms: ↑variance * * * ˌstandard deviˈation [standard deviation] … Useful english dictionary

**standard deviation** — A measure of the dispersion of statistical data. For a series of n values x1, x2, xn, it is given by the formula →[(l n) ∑ (xi x)] where x is the average of the n values. The standard deviation of the returns from an investment can be used as a… … Big dictionary of business and management

**Standard deviation** — A statistic used in *probability distribution models. In a *normal distribution of a *population of random items, the standard deviation represents the typical distance of an item from the population’s *mean value … Auditor's dictionary

**standard deviation** — standartinis nuokrypis statusas T sritis biomedicinos mokslai apibrėžtis ↑Kintamojo reikšmių sklaidos apibūdinimas. Standartinis nuokrypis lygus teigiamai kvadratinės šaknies iš ↑dispersijos reikšmei. atitikmenys: angl. standard deviation… … Lithuanian dictionary (lietuvių žodynas)