also: カイにじょう
noun which may take the genitive case particle 'no'
chi-square; chi-squared
Mathematical term used in statistics, typically in phrases like カイ二乗検定 (chi-square test) or カイ二乗分布 (chi-square distribution).
We examined the significant difference using a chi-square test.
This data follows a chi-square distribution.
Standard mathematical notation; カイ is the Greek letter chi.
Alternate reading; 二乗 can be read にじょう or じじょう, both are used.
From English chi-square, where chi is the Greek letter χ. The Japanese reading カイ reflects the English pronunciation of chi.