Search results for keyword: variance
sampling index
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The concept of sampling metrics is an important part of analytics and data mining. It’s necessary to understand the metrics that measure the quality of a sample, as well as how to best apply them. In this article, we will explore what sampling metrics are and how they work in order to gain a be......
16/07/2023 
1090 
Sophie
beta coefficient
The Lévy alpha-stable distribution, also known as the Lévy-stable distribution or the stable distribution, is a type of continuous probability distribution that is associated with a family of probability distributions known as alpha-stable or stable distributions. It is sometimes also referred t......
standard deviation
The standard deviation is a measure of spread, or dispersion, of a data set. It measures how far, on average, values deviate from the mean of the set. It is also sometimes referred to as the root mean square deviation. The standard deviation is defined as the square root of the variance.
In proba......
two factor analysis
Principal component analysis (PCA) is a type of factor analysis used to transform a set of correlated variables into a set of uncorrelated variables known as principal components (PCs). PCA is typically used to reduce the dimensionality of a large set of variables while retaining as much of the in......
variance-covariance method
Introduction
The concept of common mutation and free mutation has been used in many areas of modern scientific study, such as computer programming, genetics and other biological studies, and even economics and other social sciences. In this paper we will provide a brief overview of the concept of......
Standard Cost Control System
Standard Cost Control System
The term “standard cost control system” refers to a method of monitoring and managing actual costs against established standards. The standards for cost elements such as direct labor and materials, as well as indirect expenses such as budgeted overhead, are set by a......
Gap Analysis
Absorption-variance analysis method is a commonly used and frequently used method in cost accounting. It helps to examine the variable costs and fixed costs associated with the product, as well as to identify the cost structure related to the product. Absorption-variance analysis is useful in help......
HSD test method
Hodges–Lehmann Separation Distance (HSD) Test
Over the past century, the investigation of data set discrepancies and the comparison between two samples has been a focus of the statistical inference available. Recently, a novel technique, the Hodges–Lehmann Separation Distance (HSD) Test, has b......
Pooled GLS model
Pooled GLS Model
The pooled GLS model is a general linear model (GLM) which uses a combination of pooled data and unpooled data to form a multiple regression model. This type of model is often used in econometric research and has been used to study a variety of topics. It has been used to analyze......
R squared
The R-Squared value is a measure of a statistical measure of how close the data points fit to a regression line on a scatterplot. With a range from 0 to 1, the R-Squared value measures the percentage of variance explained by the regression line. If the R Squared value is 0, then the regression lin......
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