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Propagation of Uncertainty from Random Error

Propagation of Uncertainty from Random Error

An experiment often consists of more than a single step. In this case, measurements at each step give rise to uncertainty. Because the measurements occur in successive steps, the uncertainty in one step necessarily contributes to that in the subsequent step. As we perform statistical analysis on these types of experiments, we must learn to account for the propagation of uncertainty from one step to the next. The propagation of uncertainty depends on the type of arithmetic operation performed on...

Uncertainty: Overview

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In analytical chemistry, we often perform repetitive measurements to detect and minimize inaccuracies caused by both determinate and indeterminate errors. Despite the cares we take, the presence of random errors means that repeated measurements almost never have exactly the same magnitude. The collective difference between these measurements - observed values - and the estimated or expected value is called uncertainty. Uncertainty is conventionally written after the estimated or expected value.

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Related Experiment Video

Updated: Jun 28, 2026

Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations

Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations

Published on: September 16, 2015

[Dealing with uncertainty in general medical practice].

Norbert Donner-Banzhoff¹

¹Abteilung für Allgemeinmedizin, Präventive und Rehabilitative Medizin, Philipps-Universität Marburg. Norbert@med.uni-marburg.de

Zeitschrift Fur Evidenz, Fortbildung Und Qualitat Im Gesundheitswesen

|November 18, 2008

Summary

This summary is machine-generated.

General practitioners (GPs) use practice-specific strategies to manage diagnostic uncertainty and patient care. Reflecting on these cognitive processes can enhance professional development and improve healthcare quality.

Related Experiment Videos

Last Updated: Jun 28, 2026

Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations

Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations

Published on: September 16, 2015

Area of Science:

Medical Decision Making
Cognitive Psychology in Medicine
General Practice Research

Context:

General practitioners (GPs) encounter diverse patient populations and complex problems.
Diagnostic and prognostic tasks present significant challenges in primary care settings.
Practice-based strategies are developed to navigate clinical uncertainty.

Purpose:

To explore the cognitive strategies employed by GPs in managing uncertainty.
To understand how GPs adapt to the unique demands of their practice.
To investigate methods for improving professional development and healthcare quality through reflection.

Summary:

GPs utilize heuristics and rules to mitigate risks, such as missed diagnoses.
Strategies also address the subjective experience of uncertainty for both doctors and patients.
The cognitive processes underlying these strategies require further elucidation.

Impact:

Understanding GP decision-making can lead to better patient safety and care.
Reflection on practice can foster continuous professional development.
Improved management of uncertainty can enhance the effectiveness of primary healthcare services.