covariance
Concise Oxford English Dictionary © 2008 Oxford University Press:
covariance /kəʊˈvɛːrɪəns/
▶noun
- 1 Mathematics the property of a function of retaining its form when the variables are linearly transformed.
- 2 Statistics the mean value of the product of the deviations of two variates from their respective means.
'covariance' also found in these Oxford entries:

