marginal continuous distribution

例句：

1. 1.The marginal continuous distribution of the population is a critical issue for urban planning.
   人口的边际连续分布是城市规划的一个关键问题。
2. 2.In the marginal continuous distribution, the probability density function approaches zero as x approaches infinity.
   在边际连续分布中，当x趋向于无穷大时，概率密度函数趋近于零。
3. 3. The marginal continuous distribution of income has significant implications for economic growth and development.
   收入的边际连续分布对经济增长和发展具有重要意义。