variance -
the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value
moment the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value
statistics a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
The variance is used as one of several descriptors of a distribution. It describes how far values lie from the mean. In particular, the variance is one of the moments of a distribution.
OmegaWiki Dictionary
Ω
variance The degree to which a thing is variable.
variance A measure of the dispersion of the distribution of a random variable.