An array of inferential statistical procedures (methodologies for estimating population parameters based upon sample data) could be fruitfully exploited, but at present are not being applied.
有许多 推论统计步骤（根据样本数据估计总体参数的方法）可以被充分利用，但目前却没有应用它们。
It is statistical data applied to a population.
统计资料只适用于部分人群。
As to temporal character, the statistical time of population data should be cared for.
就时间特征而言，需要注意人口数据的统计时点。
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