R²
Created Jun 24, 2019 (14:32)
by Vidhyadharan-ext, Vaishna
Definition
Minitab: Coefficient of determination; indicates how much variation in the response is explained by the model. The higher the R2 , the better the model fits your data.
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Recovery
Created Jun 14, 2019 (08:01)
by Vidhyadharan-ext, Vaishna
Definition
Guide EURACHEM: The fraction of analyte added to a test sample (fortified or spiked sample) prior to analysis, the unfortified and fortified samples.
Reference material
Created Jun 14, 2019 (08:02)
by Vidhyadharan-ext, Vaishna
Definition
Guide EURACHEM: Material or substance one or more of whose property values are sufficiently homogeneous and well established to be used for the calibration of an apparatus, the assessment of a measurement methode, or for assigning values to materials.
Regression
Created Jun 14, 2019 (08:03)
by Vidhyadharan-ext, Vaishna
Definition
: This term is used to describe a group of method that summarize the degree of association between one variable (or set of variables) and another variables (or set of variables). The most common statistical method used to do this is the least squares regression, which works by finding the "best curve" through the data that mimizes the sums of square residuals.
Regression analysis
Created Jun 18, 2019 (10:14)
by Nupur PODDAR
Definition
MSA: A statistical study of the relationship between two or more variables. A calculation to define the mathematical relationship between two or more variables.
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Relative standard deviation
Created Jun 18, 2019 (10:15)
by Nupur PODDAR , last modified Aug 18, 2023 (07:17)
by GUENNOUNI, Nathalie
Definition
: Le coefficient de variation CV est un nombre sans dimension, exprimé en %, donnant le pourcentage que représente l'écart-type sur la moyenne. Le CV a pour interêt de permettre la comparaison entre les fluctuations relatives de variables de natures différentes.
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Replicates
Created Jun 18, 2019 (10:20)
by Nupur PODDAR
Definition
6 sigma: Repeated experimental trials that are made under identical factor levels and in similar conditions.
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