Write a paragraph at least 1 page on distribution of population
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Answer:
Population distribution is a term that refers to where people live. Distribution refers to the fact that the area is inhabited. Population density is the term that refers to how many people are in an area.
Population distribution and density are usually notated by how many people live per square mile or square kilometer. For example, there can be 10 people or under per square mile in areas, such as Russia and parts of Africa. Some areas in Asia have 100 to 250 people per square mile. Generally speaking, the majority of the earth has 50 people or under living per square mile. Very few areas of the Earth are uninhabited with the exception of places like the Arctic.
The characteristics or attributes of the population, i.e. the value of each variable in the population can be determined only when the investigator completely enumerates all the items of the population using the census method. By doing so, the frequency of these characteristics, i.e. probability of selecting some particular characteristic from the population, can be determined.
In case the population size is large and its complete enumeration is not possible, then the representative samples can be selected from the population. By doing so, several cases falling in several classes or categories can be observed to determine the frequency with which the cases of particular classes are likely to be drawn from the sample.
Once the complete information about the population is gathered, it is believed that the investigator has the knowledge of the population mean and standard deviation. For example, if a company has manufactured 5,000 cars in 2013 and want to gather information about those who had bought it and their experience so far. On the basis of such information, we can compute the population means (?) and standard deviation (σ).
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World population. In demographics, the world population is the total number of humans currently living, and was estimated to have reached 7.7 billion people as of November 2018. It took over 200,000 years of human history for the world's population to reach 1 billion; and only 200 years more to reach 7 billion.