1--- 2meta: 3 date: false 4 reading_time: false 5title: "chi-square distribution" 6date: 2023-10-05 7description: "An in-depth look into the chi-square distribution, a continuous probability distribution important in numerous fields such as statistics, economics, and social sciences." 8tags: ["chi-square distribution", "probability distribution", "statistics", "econometrics", "chi-square test"] 9--- 10 11## Background 12 13The chi-square distribution, denoted as χ²(n), is a continuous probability distribution that is widely used in statistics and econometrics. It is critically important in hypothesis testing, particularly in tests concerning variability and categorical data.