noun HSK 5
piān chā
deviation · error · discrepancy · bias

Meaning

偏差 refers to a difference or divergence from what is expected, standard, or correct. It commonly appears in scientific, technical, and statistical contexts to describe measurement errors, deviations from norms, or discrepancies between expected and actual results. The word combines 偏 (biased, inclined to one side) and 差 (difference, error).

Usage

This is a somewhat formal term frequently used in academic writing, technical reports, and professional settings. It's common in discussions of statistics, quality control, scientific experiments, and data analysis. Native speakers use it when discussing any kind of systematic or random variation from a standard or target value.

Examples

  1. 01
    实验结果和理论值之间存在较大偏差
    Shí yàn jié guǒ lùn zhí zhī jiān cún zài jiào piān chā.
    There is a large deviation between the experimental results and the theoretical values.
  2. 02
    我们需要分析数据中的偏差来源。
    men yào fēn shù zhōng de piān chā lái yuán.
    We need to analyze the sources of deviation in the data.

Characters

Measure words

  • 一个偏差
  • zhǒng这种偏差

Common collocations

  • 存在偏差
    cún zài piān chā
    there exists a deviation
  • 偏差范围
    piān chā fàn wéi
    range of deviation
  • 减少偏差
    jiǎn shǎo piān chā
    to reduce deviation
  • 标准偏差
    biāo zhǔn piān chā
    standard deviation

Antonyms

Origin

The compound combines 偏 (leaning to one side) with 差 (difference or error), literally meaning a difference that leans away from the center or norm.

Related