Bias
Created Jun 12, 2019 (11:33)
by Anurekha VIJAYARAGHAVAN , last modified Aug 18, 2023 (06:59)
by GUENNOUNI, Nathalie
Definition
ISO 3534-2:200: difference between the expectation of the test results and a true value
Note 1 to entry: Bias is the total systematic error as contrasted to random error. There can be one or more systematic error components contributing to the bias. A larger systematic difference from the accepted reference value is reflected by a larger bias value.
Note 2 to entry: The bias of a measuring instrument is normally estimated by averaging the error of indication over an appropriate number of repeated measurements. The error of indication is the ‘’indication of a measuring instrument minus a true value of corresponding input quantity’’.
Note 3 to entry: In practice, the accepted reference value is substituted for the true value.
Boxplot
Created Jun 12, 2019 (11:33)
by Anurekha VIJAYARAGHAVAN , last modified Aug 18, 2023 (06:52)
by GUENNOUNI, Nathalie
Definition
La boîte à moustache est un diagramme résumant quelques caractéristiques de position d'un jeu de données: la médiane, les quartiles, le minimum, le maximum…). Il est utilisé principalement pour comparer un même facteur dans deux jeux de données différents
This page has no comments.