Answer:
If you mean population density then the denser an area is. The more likely that most of the people there have internet access.
Explanation:
It's quite simple. The more dense an area is. There is more demand. Nowadays we are very dependant on Internet. Like how you are using Brainly right now for help! For example, if new people move to an area there will be more demand for Internet services. Let me know if this helps!
America has a class system.
Hope this helps!!
Answer: Racial groups
Explanation:
A race is based on an idea that people are divided into distinct groups based on their shared inherited physical features and shared social qualities. It is also based on visual characteristics such as skin color , cranial and facial features or even type of hair
Answer:
A door opened onto the street, but windows always faced the courtyard for extra privacy.
. Drains were laid under the streets
Explanation:
The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.