- chi-squared estimation
- chi-squared estimator
- chi-squared method
- chi-squared partition
- chi-squared statistic
- chi-squared test
- choice
- choice axiom
- choice function
- choice number
- choice of a base
- choice of the moment of time
- choice principle
- choice problem
- choice sequence
- choice set
- Cholesky, A.-L.
- Cholesky decomposition
- Cholesky factorization
- Cholesky method
- Chompré, N.M.
- Chomsky grammar
- Chomsky hierarchy
- Chomsky language
- Chomsky, N.