Sentence examples for variation is valid from inspiring English sources

The authors argued that analysis of developmental timing variation is valid for testing the hourglass model for two main reasons.

The positive correlation between performance and intra-population genetic variation is valid for outcrossing plants, but these variables are independent for autogamous species because they do not suffer the deleterious effects of inbreeding (Leimu et al. 2006).

Total variation minimization is valid for this data set, as the alumina particle and the carbon grid are known to be uniform in density.

And "international" is valid.

Their point is valid.

Billick's point is valid.

The argument is valid.

The contract is valid.

The point is valid.

Her point is valid.

Her question is valid.