standard deviation

n. Abbr. SD

A statistic used as a measure of the dispersion or variation in a distribution, equal to the square root of the arithmetic mean of the squares of the deviations from the arithmetic mean.

standard deviation

(Mathematics & Measurements / Statistics) Statistics a measure of dispersion obtained by extracting the square root of the mean of the squared deviations of the observed values from their mean in a frequency distribution

standard deviation (st

rd)

A statistic used as a measure of the dispersion or variation in a distribution, equal to the square root of the arithmetic mean of the squares of the deviations from the arithmetic mean.

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Noun

standard deviation - the square root of the variance

statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters

variance - the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value

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at variance Chebyshev's inequality coefficient of variation deviation SD standard standard error statistic Student's t variance Z score	The interval between the upper and lower bands and the middle band is determined by volatility, typically the standard deviation of the same data that were used for the average. Bollinger Bands by International Business Times - US ed. Bollinger Bands use a set moving average (20-Day SMA) with two trading bands above and below the moving average that are a determined standard deviation away from the moving average. EUR/CHF Spotlight: Indicator of the Day by Mena Report In order to place the information from these tests on a common scale, we followed the standard practice of standardizing all scores by test, grade, and year to have a mean of zero and standard deviation of one. For-profit and nonprofit management in Philadelphia schools: what ... by Peterson, Paul E.; Chingos, Matthew M. / Education Next	stand-by ticket stand-down stand-in stand-off stand-off half stand-offish stand-offishly stand-offishness stand-pat stand-to stand-up Standage standalone standard standard advanced base units standard amenities Standard and Poor's Standard and Poor's Index standard assessment tasks standard atmosphere Standard bearer standard candle standard cell standard cost standard day of supply standard deviation Standard English standard error standard function standard gauge standard generalized mark-up language standard generalized markup language Standard Grade standard housing benefit standard lamp standard load standard model standard NATO data message standard normal distribution standard of life standard of living standard of measurement standard operating procedure standard parallel standard pattern standard poodle standard positioning system standard practice standard pressure standard procedure standard rate	Standard de Stat standard death certificate Standard deduction Standard deduction Standard Deduction for Health Insurance Standard Deductions Standard Deductions Standard Default Assumption Standard Defence Supply System Standard definition Standard definition Standard Definition High Capacity Standard definition television Standard Delay File Standard Delay Format Standard Delivery Date Standard Depot Level Maintenance Standard Depot System standard depth standard depth-pressure recorder Standard Design and Development Process Standard Design Criteria Standard Design Guide Standard Desktop Configuration Standard Detailed Site Assessment Standard Development Kit standard deviate standard deviation Standard Deviation between Replicates Standard Deviation Distance Measure Standard Deviation Index Standard Deviation of a Single Height Measurement Standard Deviation of Color Matching Standard Deviation of Lateral Position Standard Deviation of Normal to Normal Standard Deviation of Normal-to-Normal Intervals Standard Deviation of Nucleolar Area Standard Deviation of Pixel Ratio Standard Deviation of Prediction Standard Deviation of Respiration Rate Standard Deviation of Run Length Standard Deviation of the Averages of NN Standard Deviation of the Error Standard Deviation of the Mean Standard Deviation of the Nuclear Perimeter Standard Deviation of the Number of Delayed Frames Standard Deviation Percent Mean Standard Deviation Related to Quality Standard Deviation Score Standard Deviation Score for Length Standard Deviation Score of Height for Chronological Age Standard deviations Standard deviations Standard deviations Standard deviations

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at variance
Chebyshev's inequality
coefficient of variation
deviation
SD
standard
standard error
statistic
Student's t
variance
Z score

The interval between the upper and lower bands and the middle band is determined by volatility, typically the standard deviation of the same data that were used for the average.

Bollinger Bands by International Business Times - US ed.

Bollinger Bands use a set moving average (20-Day SMA) with two trading bands above and below the moving average that are a determined standard deviation away from the moving average.

EUR/CHF Spotlight: Indicator of the Day by Mena Report

In order to place the information from these tests on a common scale, we followed the standard practice of standardizing all scores by test, grade, and year to have a mean of zero and standard deviation of one.

For-profit and nonprofit management in Philadelphia schools: what ... by Peterson, Paul E.; Chingos, Matthew M. / Education Next