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  2. Measurement uncertainty - Wikipedia

    en.wikipedia.org/wiki/Measurement_uncertainty

    In metrology, measurement uncertainty is the expression of the statistical dispersion of the values attributed to a quantity measured on an interval or ratio scale.. All measurements are subject to uncertainty and a measurement result is complete only when it is accompanied by a statement of the associated uncertainty, such as the standard deviation.

  3. Observational error - Wikipedia

    en.wikipedia.org/wiki/Observational_error

    Measurement errors can be divided into two components: random and systematic. [2] Random errors are errors in measurement that lead to measurable values being inconsistent when repeated measurements of a constant attribute or quantity are taken. Random errors create measurement uncertainty.

  4. Uncertainty - Wikipedia

    en.wikipedia.org/wiki/Uncertainty

    In daily life, measurement uncertainty is often implicit ("He is 6 feet tall" give or take a few inches), while for any serious use an explicit statement of the measurement uncertainty is necessary. The expected measurement uncertainty of many measuring instruments (scales, oscilloscopes, force gages, rulers, thermometers, etc.) is often stated ...

  5. Joint Committee for Guides in Metrology - Wikipedia

    en.wikipedia.org/wiki/Joint_Committee_for_Guides...

    Evaluation of measurement data – Supplement 1 to the "Guide to the expression of uncertainty in measurement" – Propagation of distributions using a Monte Carlo method. JCGM 102:2011. Evaluation of measurement data – Supplement 2 to the "Guide to the expression of uncertainty in measurement" – Extension to any number of output quantities.

  6. Uncertainty analysis - Wikipedia

    en.wikipedia.org/wiki/Uncertainty_analysis

    In physical experiments uncertainty analysis, or experimental uncertainty assessment, deals with assessing the uncertainty in a measurement.An experiment designed to determine an effect, demonstrate a law, or estimate the numerical value of a physical variable will be affected by errors due to instrumentation, methodology, presence of confounding effects and so on.

  7. Error bar - Wikipedia

    en.wikipedia.org/wiki/Error_bar

    This statistics -related article is a stub. You can help Wikipedia by expanding it.

  8. BMI is wrong way to measure obesity, researchers say - AOL

    www.aol.com/bmi-wrong-way-measure-obesity...

    A group of 58 researchers is calling for a new, better way to measure obesity. The global team’s recommendations were published in The Lancet Diabetes & Endocrinology on Jan. 14. Body mass index ...

  9. Experimental uncertainty analysis - Wikipedia

    en.wikipedia.org/wiki/Experimental_uncertainty...

    Another way of saying this is that the derived quantity g is more sensitive to, e.g., the measured quantity T than to L or θ. Substituting the example's numerical values, the results are indicated in Table 1, and agree reasonably well with those found using Eq(4).