Hence women may not 'fit' the classifications and categories used in statistics (Roberts, 1981).

These standards govern the categories used to collect and present federal data on race and ethnicity.

Certain categories of vehicle are excluded from the definition of road vehicles, and can therefore use rebated fuel.

The second broad category uses some non-contact, optical method for measuring eye motion.

The third category uses electric potentials measured with electrodes placed around the eyes.

One category of tasks uses a preferential looking paradigm, with looking time as the dependent variable.

For 2010 the category will use ethanol as fuel and engines with electronic injection.

The second category uses information continually culled from analysts' data bases.

But while the categories used to be men and women, now they are appointments and walk-ins.

Different categories of computers use a wide variety of operating systems, so the total usage share varies enormously from one category to another.