Last Digit Estimation

Last digit estimation is the practice of determining the final, uncertain digit in a measured physical quantity, helping communicate the precision of an observation. A measurement includes all scale markings that can be read with certainty plus one additional digit estimated between the smallest marked divisions; this final digit reflects instrument resolution and observer judgment. In physics, last digit estimation supports appropriate reporting of length, mass, time, and other measurements, while guiding significant-figure selection and uncertainty analysis. Consistent estimation improves comparisons between measurements, prevents overstated precision, and strengthens calculations based on experimental data.

Last Digit Estimation - Related Videos

Research

JoVE Journal - Behavior
Free Sample

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

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Cited by 9 •

2023

When we grasp an object, multiple regions of the fingers and hand typically make contact with the object's surface. Reconstructing such contact regions is challenging. Here, we present a method for approximately estimating the contact regions by combining marker-based motion capture with existing deep learning-based hand mesh reconstruction.

Research

JoVE Journal - Bioengineering

A Method to Estimate Cadaveric Femur Cortical Strains During Fracture Testing Using Digital Image Correlation

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Cited by 5 •

2017

In this protocol, the femur surface strains are estimated during fracture testing using the digital image correlation technique. The novelty of the method involves application of a high-contrast stochastic speckle pattern on the femur surface, carefully specified illumination, high speed video capture, and digital image correlation analysis for strain calculations.

Education

JoVE Core - Statistics

What are Estimates?

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2023

It isn't easy to measure a parameter such as the mean height or the mean weight of a population. So, we draw samples from the population and calculate the mean height or mean weight of the individuals in the sample. This sample data acts as a representative measure of the population parameter. These sample statistics are known as estimates. The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such as the mean,...

The Precision of Visual Working Memory with Delayed Estimation

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2023

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Human memory is limited. Throughout most of its history, experimental psychology has focused on investigating the discrete, quantitative limits of memory—how many individual pieces of information a person can remember. Recently, experimental psychologists have also become interested in more qualitative limits—how precisely is information stored? The concept of memory precision can be both intuitive and elusive at once. It is...

Estimation of k and VD of Aminoglycosides

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2025

Aminoglycosides are a class of antibiotics used to treat various bacterial infections. Clinicians must determine the elimination rate constant (k) and volume of distribution (VD) to optimize therapeutic efficacy and minimize toxicity. The k value represents the rate at which the drug is removed from the body, and the VD reflects the degree to which the drug distributes into body tissues. Accurately estimating these parameters allows healthcare professionals to tailor drug dosing to individual...

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