variance

noun

an activity that varies from a norm or standard
規範や標準と異なる活動
- any variation in his routine was immediately reported
  彼の日常の変化はただちに報告された
an official dispensation to act contrary to a rule or regulation (typically a building regulation)
規則または規定（一般的に建築規制）に逆らって行う公式の免除
- a zoning variance
  地区制特例許可
the quality of being subject to variation
変動しやすい性質
a difference between conflicting facts or claims or opinions
対立しあう事実、主張、意見の間にある相違
- a growing divergence of opinion
  膨らむ意見の不一致
the second moment around the mean
平均のあたりの第2の瞬間

the expected value of the square of the deviations of a random variable from its mean value
平均値からの確率変数の偏差の二乗の期待値
discord that splits a group
グループが不和によって割れること
an event that departs from expectations
期待から外れる出来事