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807 articles found
Statistics
The ecological fallacy is the mistake of assuming that conclusions drawn from group-level data apply equally to each individual in the group. This article covers how the name arose
Business administration
The principal-agent problem is the conflict that arises when the interests of the person who hands over a job and the person who takes it on diverge. We look at why it happens, how
Physics
Electromagnetism is a branch of physics that studies phenomena involving interactions between electrons and magnetic fields, providing a theoretical and experimental foundation for
Business administration
A network effect is the phenomenon in which a product or service becomes more valuable as more people use it. This piece covers direct and indirect effects, two-sided platforms and
Library & information science
The h-index folds the number of papers and the number of citations into a single figure. This article covers how to calculate it, what it measures and its strengths, its limits acr
Statistics
콜센터에 걸려 오는 전화는 한 시간에 평균 몇 통일까요? 평균이 180통이라면 한 분에는 3통쯤 올 텐데, 어떤 분은 한 통도 안 오고 어떤 분은 갑자기 대여섯 통이 몰립니다. 이렇게 들쭉날쭉해 보이는 횟수에도 의외로 질서가 숨어 있습니다. 그 질서를 설명하는 것이 바로 푸아송 분포(Poisson Distribution)
Film & media
Why does a slightly tilted frame make us uneasy? This article covers what the Dutch angle is, its roots in German Expressionism and the origin of its name, how film and TV have use
Film & media
Animation is a powerful medium that moves and entertains viewers. The production process passes through several stages, from developing ideas to character design, modeling, texturi
Physics
Why does a drop of water skate across a very hot pan and last longer than on a merely warm one? This article explains the Leidenfrost effect, from the vapor cushion that lifts the
Statistics
A scale assigns numbers to the attributes of people or objects so they can be expressed statistically. This article explains the four types of scales widely used in sociology, psyc
Business administration
In this article, we will explore two principles that can be applied in various fields, including marketing in business administration, economics, and statistics: the Pareto princip
Economics
Gross domestic product (GDP) is one of the most important indicators in modern economics, used to measure the size and growth of a country's economy. By capturing the sum of a coun
