Her account of the events was at variance with the official report.

The analyst explained that the variances in last quarter's sales figures were due to seasonal demand and accounting adjustments.

The variance in the test scores revealed which students needed more support.

The scientist noted several variancies in the data that required further investigation.

The variancy in test scores surprised the research team, prompting a review of the testing procedures.

Before deciding which fertilizer increased yield, the agronomist performed an analysis of variance to separate treatment effects from random variation.

During the quality review, the team identified several product variances that required immediate corrective action.

In 19th-century texts, the term product variance was sometimes used to refer to what we now call the covariance between two variables.