Below is an essay exploring how this statistical phenomenon defined that period. The Power of the Few: The 80/20 Rule in 2021

: With the 2021 surge in remote work, the rule applied to software: 80% of software crashes were often caused by the top 20% of reported bugs. Data Analysis and Tools: The Role of Statistica

For many economists and analysts, 2021 represented a period where 80% of global markets began showing signs of a "new normal" following the pandemic's disruptions. Key Data Trends from 2021

, which is useful when a standard distribution function is mathematically difficult to handle. It introduces quantile-based extropy for order statistics and cumulative extropy.