variance

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.

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.

计算方差可以帮助我们了解数据的离散程度。

Calculating the ___variance helps us understand how spread out the data is.