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810 articles found
Social welfare
What if everyone received the same money every month, no questions asked? This article covers the origins of basic income from More and Paine, its five defining features, experimen
Earth science
How does the ocean carry heat around the planet? This article covers how temperature and salt drive deep-ocean currents, the route of the global conveyor belt, its effects on clima
Logistics
How did the milk run, in which one truck visits several suppliers in turn, come about? This article explains where the name comes from, how it works, how it is used in production a
Statistics
What confidence levels and confidence intervals mean and how they differ, how a confidence interval is calculated from the sample mean, standard error, and critical value, how they
Statistics
Significance plays an important role in data analysis and the interpretation of results, and it is a concept that directly affects the reliability and validity of research. This ar
Psychology
Rationalization is a psychological defense mechanism that refers to the process by which people create logical explanations for their behavior or emotions. It is an attempt to just
Statistics
Why do call-center phones arrive in uneven bursts even when the average is steady? This article walks through the Poisson distribution—from its single-parameter formula and conditi
Business administration
This time, I would like to prepare material on the product life cycle, which describes a product's life from its launch through growth and decline. Understanding it can help busine
Earth science
Fog is a weather phenomenon frequently encountered in everyday life and an important factor that limits visibility and greatly affects transportation safety. In particular, fog can
Statistics
Regression analysis is an important tool in statistics and data science, widely used for data prediction and analysis across various industries and research fields. By modeling and
Information technology
In modern society, robotics is advancing rapidly, and its role is becoming increasingly important. Although it initially remained at the level of performing simple mechanical movem
Statistics
Standard deviation plays an important role in describing data variability and is an essential concept used in a wide range of practical situations. In data analysis and decision-ma
