covariance

nouns

(statistics) the mean value of the product of the deviations of two variates from their respective means
is derived from
is derived from
is derived from
domain category
a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
is a type of (narrower)
the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value