observed value

简明释义

观察值

英英释义

例句

1.The observed value for rainfall this month has exceeded our predictions.

本月的观测值降雨量已超过我们的预测。

2.We need to compare the observed value with the expected value to evaluate the model's accuracy.

我们需要将观测值与期望值进行比较，以评估模型的准确性。

3.The observed value of the temperature today is much higher than the average for this time of year.

今天的观测值温度远高于这个时候的平均值。

4.The observed value of the stock price fluctuated greatly throughout the week.

本周股票价格的观测值波动很大。

5.In our experiment, the observed value of the reaction rate was significantly different from the theoretical prediction.

在我们的实验中，反应速率的观测值与理论预测有显著差异。

作文

In the realm of scientific research, data collection and analysis play a crucial role in drawing accurate conclusions. One important concept that researchers often encounter is the term observed value. The observed value refers to the actual measurement or data point collected during an experiment or observation. It represents what has been recorded in reality, as opposed to theoretical predictions or expected outcomes.For instance, consider a simple experiment where a scientist measures the boiling point of water at sea level. The theoretical boiling point of water is 100 degrees Celsius. However, when the scientist conducts the experiment, they may find that the observed value is slightly different due to various factors such as atmospheric pressure or impurities in the water. In this case, the observed value is the actual temperature recorded during the experiment, which may be 99.8 degrees Celsius or 100.2 degrees Celsius.Understanding the difference between observed value and theoretical value is essential for researchers. Theoretical values are often derived from established laws and principles, while observed values are subject to variability and can be influenced by external conditions. This distinction is particularly significant in fields like physics, chemistry, and biology, where precise measurements are critical.Moreover, the observed value is fundamental in the context of statistical analysis. When researchers collect data, they often use observed values to calculate averages, variances, and other statistical measures. These calculations help in understanding trends, making predictions, and validating hypotheses. For example, if a researcher is studying the effect of a new drug on blood pressure, the observed values of patients' blood pressure readings before and after administering the drug will provide valuable insights into its efficacy.It is also important to note that observed values can be affected by measurement errors. These errors may arise from faulty equipment, human mistakes, or environmental factors. Therefore, researchers must take care to minimize these errors to ensure that their observed values are as accurate as possible. Techniques such as calibration of instruments, repeated trials, and blind testing can help improve the reliability of observed values.In conclusion, the concept of observed value is vital in the scientific method and data analysis. It denotes the actual data points collected during experiments, which are essential for validating theories and drawing conclusions. Understanding observed values allows researchers to differentiate between what is predicted and what is actually measured, leading to more accurate interpretations of their findings. As science continues to advance, the importance of accurately recording and analyzing observed values will remain a cornerstone of credible research and discovery.

在科学研究领域，数据收集和分析在得出准确结论方面起着至关重要的作用。研究人员经常遇到的一个重要概念是“observed value”一词。“observed value”指的是在实验或观察过程中收集到的实际测量值或数据点。它代表了在现实中记录的内容，而不是理论预测或预期结果。例如，考虑一个简单的实验，其中科学家测量水在海平面的沸点。水的理论沸点是100摄氏度。然而，当科学家进行实验时，他们可能会发现由于大气压力或水中杂质等各种因素，observed value略有不同。在这种情况下，observed value是实验过程中记录的实际温度，可能是99.8摄氏度或100.2摄氏度。理解observed value与理论值之间的区别对研究人员至关重要。理论值通常是基于已建立的法律和原则推导出来的，而observed value则受到变异性的影响，可能受到外部条件的影响。这种区别在物理、化学和生物等领域尤为重要，因为精确的测量至关重要。此外，observed value在统计分析的背景下也是基础。当研究人员收集数据时，他们通常使用observed value来计算平均值、方差和其他统计指标。这些计算有助于理解趋势、做出预测和验证假设。例如，如果研究人员正在研究新药对血压的影响，则患者在给药前后血压读数的observed value将提供有关其有效性的宝贵见解。还需要注意的是，observed value可能会受到测量误差的影响。这些误差可能源于设备故障、人为错误或环境因素。因此，研究人员必须小心以最小化这些误差，以确保他们的observed value尽可能准确。诸如仪器校准、重复试验和盲测等技术可以帮助提高observed value的可靠性。总之，observed value的概念在科学方法和数据分析中至关重要。它表示在实验中收集的实际数据点，这对于验证理论和得出结论至关重要。理解observed value使研究人员能够区分预测与实际测量，从而更准确地解释他们的发现。随着科学的不断进步，准确记录和分析observed value的重要性将继续成为可信研究和发现的基石。