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1.The bivariate Poisson population model is used to analyze the relationship between two variables.
双变量泊松人口模型被用来分析两个变量之间的关系。
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2. The bivariate Poisson population model was developed to study the distribution of income and education levels among different age groups.
双变量泊松人口模型被开发出来，用于研究不同年龄组的收入和教育水平分布。
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3. The bivariate Poisson population model has been widely used in various fields, such as economics, sociology, and demographic studies.
双变量泊松人口模型在经济学、社会学和人口研究中得到了广泛的应用。