您的位置首页生活百科

sample的用法和短语

sample的用法和短语

的有关信息介绍如下:

sample的用法和短语

Sample的用法和短语

一、Sample的基本含义及用法

  1. 名词(Noun):样本,样品。

    • 用法示例:The company sent us a sample of their new product for testing.(公司给我们寄来了他们新产品的样品以供测试。)
  2. 动词(Verb):取样,抽样;品尝(少量食物或饮料)。

    • 用法示例:
      • Researchers sampled the water to check for pollution.(研究人员对水进行了取样以检查污染情况。)
      • She sampled the cake before deciding whether to buy it.(她在决定是否购买之前先尝了一口蛋糕。)

二、常用短语及搭配

  1. sample survey:抽样调查

    • 示例:A sample survey was conducted to estimate the unemployment rate.(进行了一项抽样调查来估算失业率。)
  2. sample size:样本量/样本大小

    • 示例:The accuracy of the study depends on the sample size used.(研究的准确性取决于所使用的样本量。)
  3. random sample:随机样本

    • 示例:We selected a random sample of 100 participants for the survey.(我们为调查随机选择了100名参与者作为样本。)
  4. take/draw a sample:取样/抽取样本

    • 示例:The inspector took a sample of the material to test its quality.(检查员从材料中取了一个样本来测试其质量。)
  5. working sample:工作样本/实用样品

    • 示例:The designer presented a working sample of the new dress design.(设计师展示了新款服装设计的实用样品。)
  6. composite sample:混合样本

    • 示例:The researchers created a composite sample by combining samples from different locations.(研究人员通过将不同地点的样本组合起来创建了一个混合样本。)
  7. sample bias:样本偏差

    • 示例:The results of the study may be affected by sample bias.(研究的结果可能受到样本偏差的影响。)
  8. sample mean:样本均值

    • 示例:The sample mean of the data set is calculated as the average of all observations in the sample.(数据集的样本均值是样本中所有观测值的平均值。)
  9. sample variance:样本方差

    • 示例:The sample variance measures the degree of variation or dispersion in a sample.(样本方差用于衡量样本中的变异程度或离散度。)
  10. sample standard deviation:样本标准差

    • 示例:The sample standard deviation provides an estimate of the population standard deviation based on a sample.(样本标准差基于样本提供了对总体标准差的估计。)

三、注意事项

  • 在使用“sample”时,要根据上下文明确其词性(名词或动词),并准确理解其在句子中的含义和作用。
  • 注意区分不同短语的含义和用法,避免混淆。例如,“sample survey”与“survey sample”虽然意思相近,但前者更强调抽样的过程和方法,而后者则更侧重于被调查的样本本身。