People often want to find statistics as part of their research. Someone doing business research might want statistics on population or income for a certain area, or export numbers, someone else researching health topics could be looking for numbers on a certain disease, or yet another researcher will be looking for crime statistics.
These sorts of things can be tricky to find. You may find some statistics in a good article on the topic, or in a background reference source like an encyclopedia. Another good place to look is in the library research guide to your topic, as our guides generally include information about finding statistics. As a last tip, the U.S. Government guide points to a wide range of useful government sites.