The tendency to attribute to an individual the characteristics you believe are typical of the group to which that individual belongs is known as stereotyping.
Explanation:
The stereotype is defined as the general belief about a particular category of people based on their ethnicity and sexual orientation. In simple terms, it proposes the expectation that one person might have about another person of a particular group.
Stereotype may sometimes go wrong, as it is just guess of what the situation or a person is. The decision taken just by looking on the outside of the person may be untrue or partly true.
Social categorization, contrast effect and social identity theory are some of the factors contributing the stereotyping.
