A segment of a population targeted for study can be called a focus group. This is a small number of people that represent what you are wanting to learn more about.
the oldest segment of the population is projected to increase to 20% of the population in the next 25 years
Study island question- Segment 2
target population
It could depend on what the study was specifically focused on. If it is focused on teen drivers alone, then the sample would be composed of a random selection of teenaged drivers. If it is testing the overall population of drivers, then there would be a random sample of those people.
A priori simply means "prior to", so it is something done prior to conducting your experiment. Post hoc means "after", so doing it after the study is complete. A parameter is a number associated with the the population, so an a priori parameter could be the mean of the population prior to an event such as your experiment and a post hoc parameter would then be the population mean after the event.
A targeted audience is a group of people that are specifically targeted by a work of literature or a specific product or production. It is often an advertisement which uses audience targeting.
Audience. Target Market. Demo(graphic). Segment.
Parents of small children. They're the most likely to decide they're too tired to cook tonight and stop at a burger joint for dinner instead.
they often do not represent an accurate cross section of the total population.
It also targeted the civilian population of the South.
targeted the empire's non-Russian population emphasized the use of the Russian language
I need more context
sample is the population we make our study about them.
People over the age of 80 are the fastest growing segment of the population. This is expected to be true for the next four decades.
Elderly
Hispanics.
population dynamics-Population dynamics is the study of the factors that influence these changes in a population's size