名词
中文翻译：统计
同义词：
['sample', 'sample size', 'sample survey']
例句：
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1.Collecting data for a statistical analysis is essential for understanding trends.
为了理解趋势，进行统计分析收集数据是必要的。
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2.The researcher used a sample of 500 people to estimate the population's average age.
研究者使用500人的样本来估计人口的平均年龄。
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3.The sample survey revealed that over 60% of the population does not have access to clean water.
抽样调查发现，超过60%的人口无法获得清洁的饮用水。