Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Expected Value

Expected Value

The expected value is known as the "long-term" average or mean. This means that over the long term of experimenting over and over, you would expect this average. The expected average is represented by the symbol μ. It is calculated as follows:

Determination of Expected Frequency

Determination of Expected Frequency

Suppose one wants to test independence between the two variables of a contingency table. The values in the table constitute the observed frequencies of the dataset. But how does one determine the expected frequency of the dataset? One of the important assumptions is that the two variables are independent, which means the variables do not influence each other. For independent variables, the statistical probability of any event involving both variables is calculated by multiplying the individual...

Predicting Molecular Geometry

Predicting Molecular Geometry

VSEPR Theory for Determination of Electron Pair Geometries

Development of Analytical Methods

Development of Analytical Methods

An analytical methodology can be divided into four sequential steps: technique, method, procedure, and protocol. A technique is a scientific principle that rationalizes a specific phenomenon through chemical measurements. Adapting a technique for analyzing a sample of interest is termed a method. The procedure outlines the directions for performing the analysis via an analytical method. The protocol is the detailed guidelines on the procedure, which should be strictly followed to obtain the...

Prediction Intervals

Prediction Intervals

The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.

Analyte Adsorption and Distribution

Analyte Adsorption and Distribution

In certain chromatographic separations, solutes transfer between the mobile phase and the stationary phase via sorption, which typically refers to the process of adsorption. For many chromatographic systems, the sorption process often depends on the polarity of the compounds—an expression of the overall dipole moment within the molecule. During the separation process, there is competition between the solute and solvent for adsorption to the stationary phase. Highly polar compounds and...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Patient Versus Prediction-Level Evaluation of a Dynamic Clinical Prediction Model of Sepsis.

Research square·2026

Same author

Effect of Using Personalized Estimates of Diabetes Risk During Primary Care Visits for People With Prediabetes.

Learning health systems·2026

Same author

Patient Versus Prediction-Level Evaluation of a Dynamic Clinical Prediction Model of Sepsis.

medRxiv : the preprint server for health sciences·2026

Same author

Mechanism Attribution After Cryptogenic Stroke: Toward a RoPE Score for Atrial Fibrillation Detected After Stroke.

Stroke·2026

Same author

Diagnostic Agreement and Prognostic Value of Clinically Interpreted CT vs MRI for Incidentally Discovered Covert Cerebrovascular Disease.

Neurology·2026

Same author

Patent Foramen Ovale Closure in Stroke and the PASCAL Classification System.

JAMA neurology·2026

Same journal

WHO Issues Guidelines for Treating Ebola and Marburg Viruses.

JAMA·2026

Same journal

FDA Approves Additional Naloxone Nasal Spray for Opioid Overdose.

JAMA·2026

Same journal

HIV May Hide in More Cells Than Previously Thought-Here's What That Could Mean for a Cure.

JAMA·2026

Same journal

US Dietary Supplement Use Increasing, Especially in Older Adults.

JAMA·2026

Same journal

Heat Stress From Climate Change Surges Globally.

JAMA·2026

Same journal

Strength Training Linked With Lower Cardiovascular Disease Risk in Women.

JAMA·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Feb 10, 2026

Facilitating the Analysis of Immunological Data with Visual Analytic Techniques

Facilitating the Analysis of Immunological Data with Visual Analytic Techniques

Published on: January 2, 2011

Big Data and Predictive Analytics: Recalibrating Expectations

Nilay D Shah¹, Ewout W Steyerberg², David M Kent³

¹Department of Health Sciences Research, Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota.

|May 30, 2018

Summary

No abstract available in PubMed .

More Related Videos

Fabricating Cotton Analytical Devices

Fabricating Cotton Analytical Devices

Published on: August 30, 2016

A Protocol for Computer-Based Protein Structure and Function Prediction

A Protocol for Computer-Based Protein Structure and Function Prediction

Published on: November 3, 2011

Related Experiment Videos

Last Updated: Feb 10, 2026

Facilitating the Analysis of Immunological Data with Visual Analytic Techniques

Facilitating the Analysis of Immunological Data with Visual Analytic Techniques

Published on: January 2, 2011

Fabricating Cotton Analytical Devices

Fabricating Cotton Analytical Devices

Published on: August 30, 2016

A Protocol for Computer-Based Protein Structure and Function Prediction

A Protocol for Computer-Based Protein Structure and Function Prediction

Published on: November 3, 2011