ABSTRACT: This article has two objectives. The first is to develop an R script that performs Mardia’s K2 test for assessing multivariate normality (MVN), using both its original asymptotic formulation ...

This package provides a fast way to evaluate the pdf and cdf of a standardized multivariate normal distribution. Currently, it only contains code for the bivariate normal distribution. The ...

The normal distribution is a concept in statistics that assumes all values are distributed in the same pattern. It requires symmetry and consistent proportions in the distribution of values. Normal ...

ABSTRACT: In a previous article, an R script was developed and divided into three parts to implement the multivariate normality (MVN) Q-test based on both the chi-square approximation and the ...

When business researchers analyze data, they often rely on assumptions to help make sense of what they find. But like anyone else, they can run into a whole lot of trouble if those assumptions turn ...

This report describes the world’s religious makeup in 2020 and how it changed from 2010. We focus on seven categories: Christians, Muslims, Hindus, Buddhists, Jews, people who belong to other ...

The word "normal" permeates many aspects of our lives—from medicine to fashion, intelligence testing to behavior. However, beneath its comforting surface lies a more complex and potentially limiting ...

Imagine you're at a fair, and you see a booth with a giant dartboard. The booth owner challenges you to hit the bullseye. You take your shot, and the dart lands somewhere on the board. Now imagine ...

The IQ bell curve meme, also referred to as the “midwit” meme, makes use of a graph representation of the probability theory of normal distribution. This graph, commonly known as the “bell curve” for ...

“One Guinness, please!” a customer says to a barkeep, who flips a branded pint glass and catches it under the tap. The barkeep begins a multistep pour process lasting precisely 119.5 seconds, which, ...