I'm pretty sure the answer is either A or D
Answer: C
Explanation: look at the attached picture. Hope it makes sense.
It might be tuitions or grants.
Answer:
In an observational study, we measure or survey members of a sample without trying to affect them. In a controlled experiment, we assign people or things to groups and apply some treatment to one of the groups, while the other group does not receive the treatment.
Explanation:
Answer: They may be relocated for a job
There are many people in the United States that don’t tend to buy their own house and prefer to live on rent, the major reason that they do not buy their own house is because of the nature of their job. The job that they do, require a lot of moving around in the states which as a result demands for them to move frequently and in such cases many people avoid to buy a house because you cannot live in it for a long period of time.
