variance|variances

学校获得特别许可，可以延长暑假时间。

The school was granted a ___variance to extend the summer break.

两个实验室的报告之间存在一些差异。

There were some ___variances between the reports from the two labs.

这个数据集的方差很大，说明数值分布很分散。

The large ___variance suggests the data points are highly scattered.