Naturalization: the process that give someone citizenship in a new country.
Participate: to take an active part in something.
Resident alien: a person living in a country who is not a citizen.
Citizen: a member of a nation who is entitled to its protection.
The correct answer is a representative portion of a universe in which each member of the universe has an equal chance of being included
A random sample is a subset of individuals (the sample) randomly selected from a larger set (the population) by a process that ensures that: All individuals in the population are equally likely to be chosen for the sample.