1.Stereotype, a perception process, is a form of generalization about some group of people. When people have little information about a group of people, they are likely to think of them in a very general way. 

If they interact with other people who also lack information about the same process of overgeneralizing based on limited or inaccurate information.

2.Stereotypes are not innate to human beings.

Stereotypes are learned in a variety of ways. 

First, children acquire stereotypes from their parents, relatives and friends.

Second, stereotypes develop through limited personal contact. Many may have resulted from direct experience with only one or two people from a particular cultural group.

Finally, many stereotypes are provided by the mass media. Television has been guilty of providing distorted images of many ethnic group.