In sociology and social psychology, the term "ambiguity" is used to indicate situations that involve uncertainty.

Every investment involves uncertainty, of course.

The book also revealed that Pasteur's success with the vaccine for rabies, which he hastily developed in the 1880's, involved much uncertainty and human experimentation.

It was a particularly cold winter, and the crossing involved considerable hardship and uncertainty.

This will save some money but involves more hassle and uncertainty and requires more time.

Stochastic programming is a framework for modeling optimization problems that involve uncertainty.

In situations that involve known risk rather than uncertainty, the insular cortex seems to be highly active.

The High Court held that Rylands involved 'quite unacceptable uncertainty' (540).

This would involve legal uncertainty as to the status of the list and cannot, therefore, be approved.

There are a number of choices involving uncertainty and normally they can be classified in two categories: risky and ambiguous events.