variance
n 1: an event that departs from expectations [syn: {discrepancy},
{variant}]
2: discord that splits a group [syn: {division}]
3: the second moment around the mean; the expected value of the
square of the deviations of a random variable from its
mean value
4: a difference between conflicting facts or claims or
opinions; "a growing divergence of opinion" [syn: {discrepancy},
{disagreement}, {divergence}]
5: the quality of being subject to variation [syn: {variability},
{variableness}] [ant: {invariability}, {invariability}]
6: an activity that varies from a norm or standard; "any
variation in his routine was immediately reported" [syn: {variation}]