The Role of Variance Analysis in Businesses. Variance analysis, also described as analysis of variance or ANOVA, involves assessing the difference between two figures. It is a tool applied to ...

What Is Budget Variance Analysis?. Companies prepare budgets so they can plan the evolution of their business. Budgeted costs allow them to set prices, project sales and estimate profits. For a ...

Variance is a measurement of the spread between numbers in a data set. Investors use the variance equation to evaluate a portfolio’s asset allocation.

Standard deviation is a statistic measuring the dispersion of a dataset relative to its mean. It is calculated as the square root of the variance. Learn how it's used.

Eleazar Eskin and colleagues report a variance component model for correcting for sample structure in association studies. The EMMAX program is publicly available and may be used for analysis of ...

The following article will show you, step-by-step, how to calculate the historical variance of stock returns with a detailed example.

Key Points Fisher’s 1-Way ANOVA is a basic statistical test for detecting differences in the means between two or more sample ...

This article will cover the theory underpinning multivariate analysis of variance (MANOVA), which expands on the capabilities of ANOVA, the types of MANOVA and a worked example of the test.

Yurii Aulchenko and colleagues report a variance components–based method, GRAMMAR-Gamma, for genome-wide association studies including a large number of individuals and genetic markers. They ...

Mean-variance analysis enables investors to construct a portfolio of assets that maximizes expected return for a given level of risk. In this framework, risk is defined by the variance of returns.