The only variable involved is in your head.

The constraints involve only first-period variables and are the same in every scenario.

Designing the configuration of production systems involves both technological and organizational variables.

By definition, these constraints only involve variables that are lower than .

A similar test involving more variables can be applied with vector autoregression.

It is impossible to calculate outcomes with any certainty in a decision situation that involves qualitative variables.

Consider some of the variables involved here.

Typically these models involve latent variables in addition to unknown parameters and known data observations.

All science involves isolating variables and is challenging in terms of trying to apply limited experiments to a complex universe.

Human experts are unable to take into account all the variables involved and also cannot provide an analytic prediction of campaign behavior and trends.