Population
a complete collection of all elements to be studied. It is the group of individuals that we want information about
Population refers to the total number of individuals of a particular species living in a given area at a given time. It can also refer to the number of people living in a particular geographic location or country. The size of a population is typically determined by births, deaths, immigration, and emigration.
Measuring population growth and size is important for various fields, including economics, ecology, and public health. Studying population trends can help us understand patterns in human migration, develop policies to manage resources, and predict economic trends.
There are various methods used to measure population size and growth such as the census or surveys. The census is a systematic count of a country’s population, conducted every 10 years in the United States. Surveys, on the other hand, are used to estimate the population size of a particular plant or animal species.
Population growth can be either positive or negative, and is typically measured by the growth rate, which is the change in the size of the population over a given time period, usually expressed as a percentage. Understanding population growth rates can help predict the future demand for resources, such as food, housing, and water, and help policymakers make informed decisions about managing these resources.
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