{}, {lower class}, {working class}, {middle class}, {upper class}, {lower class, working class}, {lower class, middle class}, {lower class, upper class}, {working class, middle class}, {working class, upper class}, {middle class, upper class}, {lower class, working class, middle class}, {lower class, working class, upper class}, {lower class, middle class, upper class}, {working class, middle class, upper class}, {lower class, working class, middle class, upper class}

Lower class < Upper class

This kind of information will be helpful in the study of sociology. Socioeconomic class is an important grouping as a base for a wealth of studies.

• Using yourclassmate's diagram,write one equality statement that can be assumed.
• Explain what this equality means in the context of the situation.