
Chi-squared test - Wikipedia
Pearson's chi-squared test is used to determine whether there is a statistically significant difference between the expected frequencies and the observed frequencies in one or more …
Chi-Square (Χ²) Tests | Types, Formula & Examples - Scribbr
May 23, 2022 · The chi-square test of independence is used to test whether two categorical variables are related to each other. Chi-square is often written as Χ 2 and is pronounced “kai …
Chi-squared test | Definition, Formula, Types, & Facts | Britannica
Nov 27, 2025 · Chi-squared test, a hypothesis-testing method in which observed frequencies are compared with expected frequencies for experimental outcomes. In hypothesis testing, data …
What Is Chi Square Test & How To Calculate Formula Equation
Aug 29, 2023 · The Chi-square test is a statistical method used to determine if there's a significant association between two categorical variables in a sample.
Chi-Square (χ2) Statistic: What It Is, Examples, How and When to …
Oct 2, 2025 · Chi-square is a statistical test used to examine the differences between categorical variables from a random sample in order to judge the goodness of fit between expected and …
Chi-Square Test: Formula, Types, & Examples - Simplilearn
Nov 11, 2025 · Learn about the Chi-Square test, its formula, and types. Understand when to use the tests, chi-square distributions, and how to solve Chi-Square problems.
A Quick and Clear Guide to Chi-square Test
May 15, 2025 · Explore efficient techniques and step-by-step procedures in Chi-square testing to enhance your statistical analysis skills.
Chi-Square Test - GeeksforGeeks
Aug 2, 2025 · Chi-squared test, or χ² test, helps in determining whether these two variables are associated with each other. This test is widely used in market research, healthcare, social …
Chi-Square Test - Math is Fun
The Chi-Square Test gives a way to help you decide if something is just random chance or not.
Chi-square Test: Formula, Uses, Table, Examples, Uses
Aug 3, 2023 · A Chi-square test is performed to determine if there is a difference between the theoretical population parameter and the observed data. Chi-square test is a non-parametric …