| 单词 | population |
| 释义 | populationDefinition All elements, individuals, or units that meet the selection criteria for a group to be studied, and from which a representative sample is taken for detailed examination. The total of all populations is called a universe. Use 'population' in a SentenceOver the past 300 years, the population of nearly every major area in the world has increased exponentially, so much so that certain places have instituted incentives to couples who agreed to have fewer children. When pollsters attempt to predict the outcome of a presidential election, they will contact a sample of 1,000 to 2,000 people, and from the sample, they are trying to infer the behavior of the entire population of voters. In the scientific study, the only population of horses that were studied were the horses that had long and curly manes. |
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