also: カイにじょうけんてい
noun
chi-square test; chi-squared test
A statistical test used to determine if there is a significant association between categorical variables. Domain-specific term in mathematics and statistics.
アンケート結果の分析にカイ二乗検定を使った。
We used a chi-square test to analyze the survey results.
カイ二乗検定は、観測値と期待値の差を評価する。
The chi-square test evaluates the difference between observed and expected values.
From English 'chi-square test'. カイ is the katakana rendering of the Greek letter χ (chi), 二乗 means 'squared', and 検定 means 'test' or 'verification'.