average value

简明释义

平均值

英英释义

例句

1.The average value of the sales figures for the last quarter showed a significant increase.

上个季度销售额的平均值显示出显著增长。

2.In statistics, the average value is often referred to as the mean.

在统计学中，平均值通常被称为均值。

3.To determine the average value of the monthly expenses, we added all expenses and divided by twelve.

为了确定每月支出的平均值，我们将所有支出相加并除以十二。

4.The average value of the test scores was 75, indicating a good overall performance.

考试成绩的平均值为75，表明整体表现良好。

5.The average value of the temperatures over the week was higher than usual, reaching 30 degrees Celsius.

一周内的温度平均值高于通常水平，达到了30摄氏度。

作文

In mathematics and statistics, the concept of average value plays a crucial role in understanding data sets. The average value is essentially a measure that summarizes a set of numbers, providing a single value that represents the entire group. This is particularly useful when we want to understand the overall trend or behavior of a dataset without getting lost in individual data points.To calculate the average value, one typically adds up all the numbers in a dataset and then divides that sum by the count of the numbers. For instance, if we have the numbers 4, 8, 6, 5, and 3, the average value would be calculated as follows: (4 + 8 + 6 + 5 + 3) / 5 = 26 / 5 = 5.2. This means that the average value of this dataset is 5.2, which gives us an idea of the central tendency of these numbers.The importance of the average value extends beyond simple arithmetic. In various fields such as economics, psychology, and environmental science, the average value serves as a vital tool for analysis. For example, economists often use the average value of income to gauge the economic health of a region. A higher average value indicates better economic conditions, while a lower average value may suggest poverty or economic decline.Moreover, the average value can help in making comparisons between different datasets. For instance, if we compare the average value of test scores between two classes, we can assess which class performed better overall. This comparative analysis can inform educators about the effectiveness of teaching methods or curricular changes.However, it is essential to note that the average value does not always tell the whole story. It can be misleading, especially if the dataset contains outliers—values that are significantly higher or lower than the rest. For example, if we consider the salaries of employees in a company where most earn around $50,000, but the CEO earns $1,000,000, the average value of salaries would be skewed towards the higher end. In such cases, it is often more informative to look at other measures of central tendency, such as the median, which represents the middle value of a dataset when arranged in order.In conclusion, the average value is a fundamental concept that aids in summarizing and interpreting data across various fields. While it provides valuable insights, it is crucial to consider the context and potential outliers when relying on the average value for decision-making. Understanding how to calculate and interpret the average value can enhance our analytical skills and improve our ability to draw meaningful conclusions from data.

在数学和统计学中，平均值的概念在理解数据集方面发挥着至关重要的作用。平均值本质上是一个度量，能够总结一组数字，提供一个代表整个群体的单一值。当我们想要了解数据集的整体趋势或行为，而不被单个数据点所迷惑时，这一点尤其有用。要计算平均值，通常需要将数据集中的所有数字相加，然后将该总和除以数字的数量。例如，如果我们有数字4、8、6、5和3，则平均值的计算如下：(4 + 8 + 6 + 5 + 3) / 5 = 26 / 5 = 5.2。这意味着该数据集的平均值为5.2，这使我们对这些数字的集中趋势有了一个概念。平均值的重要性超出了简单的算术。在经济学、心理学和环境科学等多个领域，平均值作为分析的关键工具。例如，经济学家经常使用收入的平均值来评估一个地区的经济健康状况。较高的平均值表明更好的经济条件，而较低的平均值可能暗示贫困或经济衰退。此外，平均值还可以帮助比较不同的数据集。例如，如果我们比较两个班级的考试成绩的平均值，我们可以评估哪个班级整体表现更好。这种比较分析可以让教育工作者了解教学方法或课程变更的有效性。然而，必须注意的是，平均值并不总是能讲述整个故事。它可能会产生误导，特别是当数据集中包含异常值——显著高于或低于其余值的值时。例如，如果我们考虑一家公司的员工薪水，其中大多数员工的薪水在$50,000左右，但首席执行官的薪水为$1,000,000，那么薪水的平均值将向较高的一端倾斜。在这种情况下，查看其他集中趋势的度量，如中位数，可能更具信息性，中位数表示按顺序排列的数据集中的中间值。总之，平均值是一个基本概念，有助于总结和解释各个领域的数据。虽然它提供了有价值的见解，但在依赖平均值进行决策时，考虑上下文和潜在的异常值至关重要。理解如何计算和解释平均值可以增强我们的分析技能，提高我们从数据中得出有意义结论的能力。