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(square of the standard deviation)

См. также в других словарях:

  • 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 — 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 — (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 — 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

  • Unbiased estimation of standard deviation — In statistics, the standard deviation is often estimated from a random sample drawn from the population. The most common measure used is the sample standard deviation , which is defined by:s = sqrt{frac{1}{n 1} sum {i=1}^n (x i… …   Wikipedia

  • Standard Deviation — 1. A measure of the dispersion of a set of data from its mean. The more spread apart the data, the higher the deviation. Standard deviation is calculated as the square root of variance. 2. In finance, standard deviation is applied to the annual… …   Investment 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 — Statistics. a measure of dispersion in a frequency distribution, equal to the square root of the mean of the squares of the deviations from the arithmetic mean of the distribution. [1920 25] * * * ▪ statistics       in statistics, a measure of… …   Universalium

  • standard deviation — /stændəd diviˈeɪʃən/ (say standuhd deevee ayshuhn) noun the square root of the average of the squares of a set of deviations about an arithmetic mean; the root mean square of the deviations of a set of values …  

  • The Correlation Between Relatives on the Supposition of Mendelian Inheritance — is a scientific paper by R.A. Fisher which was published in the Philosophical Transactions of the Royal Society of Edinburgh in 1918, (volume 52, pages 399 ndash;433). In it, Fisher puts forward a genetic model that shows that continuous… …   Wikipedia

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