Read the dictionary definition of variance. All definitions for this word.
1. an activity that varies from a norm or standard
1. any variation in his routine was immediately reported
2. an official dispensation to act contrary to a rule or regulation (typically a building regulation)
1. a zoning variance
3. the quality of being subject to variation
4. a difference between conflicting facts or claims or opinions
1. a growing divergence of opinion
5. the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value
6. discord that splits a group
7. an event that departs from expectations
