Variance
01
差异, 方差
a difference or deviation from what is expected or typical
例子
There was a slight variance in the experiment ’s results.
实验结果有轻微的差异。
02
an official permission to act contrary to a rule, law, or regulation, especially in building or zoning
例子
The city council granted a variance for the unusually tall structure.
03
the state or quality of being subject to change or variation
例子
Natural variance in rainfall affects crop yield.
04
方差
a measure of the dispersion or spread of a set of data points in statistics, representing the average squared deviation from the mean
例子
The variance of a random variable is the expectation of the squared deviation of that variable from its mean.
随机变量的方差是该变量与其均值平方偏差的期望。
05
disagreement that divides a group
例子
Family variance arose over the inheritance.
06
an event or occurrence that departs from expectation
例子
His promotion was a variance from predicted outcomes.
词汇树
covariance
variance
vary
