Answer:
The term for a group of individual entities whose healthcare costs are combined for evaluating financial history and estimating future costs is r<u>isk pool.</u>
Explanation:
Risk pool refers to the risks that a group of individual entities may experience, which are financially unbearable for the company, person or healthcare sector, therefore they are transferred to an insurance company, that can handle these situations. In the healthcare sector, medical history, and previous expenditures are taken into account to evaluate future costs and risks.
The public health protects and improve the health of communities through helping them prevent having disease or acquire illness throughout their communities and they do it through research and having it promoted by educating them in order to help them prevent and have a healthy community.
