WordReference Random House Unabridged Dictionary of American English © 2026
chi-square
(kī′skwâr′),USA pronunciation n. [Statistics.]
- Statisticsa quantity equal to the summation over all variables of the quotient of the square of the difference between the observed and expected values divided by the expected value of the variable.
- 1935–40
'chi-square' also found in these entries (note: many are not synonyms or translations):