Humanities Homework Help

I’m working on a african studies question and need guidance to help me learn.

1. How do sociologists define “minority” and “dominant” ethnic groups? Provide examples from American society.
2. How would you explain to someone that political power is more important than population size when it comes to relationship between minority and dominant groups?
3. Looking at the American ethnic hierarchy, do you think the position of those at the top, middle and bottom can change in the future? How do you think the positions of groups will change.