这是一个简单的帕雷托图表的例子，用抽样资料显示引起网络错误原因的相对频率。
This is a simple example of a Pareto diagram using sample data showing the relative frequency of causes for errors on websites.
设计调查计划时，要确定资料来源，调查手段，抽样方法和联系方法。
Designing a research plan calls for decision on the data sources, research approaches, research instrument, sampling plan, and contact method.
依据抽样调查资料和阶级成分档案资料，冀南农村的分家行为与传统具有很强的延续性。
Based on sample survey data and dass status materials, this artide systemiatically examines household division in the villages of south Hebei.
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