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Standard deviation and standard error of the mean [PDF]

open access: yesKorean Journal of Anesthesiology, 2015
In most clinical and experimental studies, the standard deviation (SD) and the estimated standard error of the mean (SEM) are used to present the characteristics of sample data and to explain statistical analysis results.
Dong Kyu Lee, Junyong In, Sangseok Lee
doaj   +3 more sources

The distance standard deviation [PDF]

open access: yesThe Annals of Statistics, 2020
The distance standard deviation, which arises in distance correlation analysis of multivariate data, is studied as a measure of spread. The asymptotic distribution of the empirical distance standard deviation is derived under the assumption of finite second moments.
Edelmann, Dominic   +2 more
openaire   +3 more sources

Mean-standard deviation-conditional value-at-risk portfolio optimization [PDF]

open access: yesMathematics and Modeling in Finance, 2023
The use of variance as a risk measure is limited by its non-coherentnature. On the other hand, standard deviation has been demonstrated as acoherent and effective measure of market volatility. This paper suggests theuse of standard deviation in portfolio
Maziar Salahi   +2 more
doaj   +1 more source

Standard deviations and standard errors [PDF]

open access: yesBMJ, 2005
The terms “standard error” and “standard deviation” are often confused.1 The contrast between these two terms reflects the important distinction between data description and inference, one that all researchers should appreciate. The standard deviation (often SD) is a measure of variability.
Altman, D, Bland, J
openaire   +3 more sources

Locally structured correlation (LSC) plots describe inhomogeneity in normally distributed correlated bivariate variables

open access: yesArchives of Public Health, 2022
Background The association between bivariate variables may not necessarily be homogeneous throughout the whole range of the variables. We present a new technique to describe inhomogeneity in the association of bivariate variables. Methods We consider the
Rebekka Mumm   +2 more
doaj   +1 more source

Change in Perimetric Global Indices Following Cataract Surgery in Patients with Glaucoma

open access: yesDelhi Journal of Ophthalmology, 2021
Purpose: To study the change in perimetric global indices following cataract surgery in patients with glaucoma & Comparison of preoperative & postoperative perimetric indices.
Sandeep Arora, Sumita Karandikar
doaj   +1 more source

Evaluating the Packing Process in Food Industry Using Fuzzy X and S Control Charts [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2011
The fuzzy set theory addresses the development of concepts and techniques for dealing with uncertainty or impression conditions. If the collected data from a process include vagueness due to human subjectively or measurement system, fuzzy control charts ...
Nihal Erginel   +3 more
doaj   +1 more source

Data on estimation of health hazards associated with pesticide residues in drinking water

open access: yesData in Brief, 2022
The dataset presents the occurrence of 113 pesticide residues (PR) in drinking water samples from 31 counties worldwide and correlates their concentrates with human health. The dataset classifies PRs to four toxicity classes.
Ibrahim El-Nahhal, Yasser El-Nahhal
doaj   +1 more source

Determination of the Inaccuracies of Calculated EEG Indices

open access: yesSensors, 2020
The data obtained as a result of an EEG measurement are burdened with inaccuracies related to the measurement process itself and the need to remove recorded disturbances.
Mariusz Borawski   +2 more
doaj   +1 more source

Do you have a standard way of interpreting the standard deviation? A narrative review

open access: yesCancer Research, Statistics, and Treatment, 2022
Data presented in a paper have the limitation of summarizing the individual findings into statistical inferences. The standard deviation allows the reader to understand the spread of the data or the measurement of variation in a dataset that follows a ...
H S Darling
doaj   +1 more source

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