index number

简明释义

指数;索引编号

英英释义

例句

1.You can look up the index number in the database to find the necessary information.

您可以在数据库中查找索引号以找到所需的信息。

2.Each item in the inventory is assigned a unique index number.

库存中的每个项目都有一个唯一的索引号。

3.The library uses an index number system to categorize books.

图书馆使用索引号系统来对书籍进行分类。

4.The index number of the product can be found on the packaging.

产品的索引号可以在包装上找到。

5.Please provide the index number for your order to track its status.

请提供您的订单的索引号以跟踪其状态。

作文

In the realm of statistics and data analysis, the term index number refers to a numerical value that represents a relative change in a variable over time. It is a crucial tool used to measure economic performance, social trends, or any other phenomena where comparison is necessary. For instance, when evaluating inflation rates, economists often utilize an index number to compare the current price level of a basket of goods to the price level of the same basket in a base year. This allows them to quantify how much prices have increased or decreased over a certain period. The concept of an index number can also be applied in various fields such as finance, health, and education. In finance, stock market indices like the S&P 500 are essentially index numbers that represent the performance of a selected group of stocks. Investors use these indices to gauge market trends and make informed decisions about their investments. Similarly, in health care, the Human Development Index (HDI) serves as an index number that combines indicators of life expectancy, education, and per capita income to assess the overall development of countries.Moreover, the calculation of an index number involves a formula that typically compares the current value of the variable to its value in the base year. This ratio is then multiplied by 100 to express it as a percentage. For example, if the price of a commodity was $50 in the base year and has risen to $75 in the current year, the index number would be calculated as follows: (75/50) * 100 = 150. This indicates a 50% increase in price since the base year.Understanding index numbers is essential for making sense of complex data. They simplify large datasets into digestible information, allowing analysts and decision-makers to identify trends, make comparisons, and draw conclusions efficiently. In an age where data is abundant, the ability to interpret index numbers can significantly impact research outcomes, policy-making, and strategic planning.Furthermore, while index numbers provide valuable insights, they also come with limitations. They may oversimplify reality or fail to account for all variables in a given situation. For instance, an index number reflecting average income might not reveal disparities within different demographics or regions. Therefore, it is crucial to use index numbers in conjunction with other analytical tools to obtain a comprehensive understanding of the subject matter.In conclusion, the index number is a fundamental concept in various disciplines that aids in the analysis and interpretation of data. By providing a clear numerical representation of changes over time, it facilitates better decision-making and enhances our understanding of trends and patterns. As we continue to navigate an increasingly data-driven world, mastering the use of index numbers will undoubtedly remain a vital skill for professionals across all fields.

在统计学和数据分析领域，术语指数数字指的是一个数值，它表示某个变量随时间的相对变化。它是衡量经济表现、社会趋势或任何其他需要比较的现象的重要工具。例如，在评估通货膨胀率时，经济学家通常利用指数数字来比较一篮子商品当前的价格水平与基期同一篮子商品的价格水平。这使他们能够量化在某一特定时期内价格的上涨或下跌。指数数字的概念也可以应用于金融、健康和教育等多个领域。在金融领域，像标准普尔500这样的股票市场指数本质上就是指数数字，它代表了一组选择股票的表现。投资者利用这些指数来判断市场趋势，并做出明智的投资决策。同样，在医疗保健中，人类发展指数（HDI）作为一个指数数字，结合了预期寿命、教育和人均收入的指标，以评估国家的整体发展。此外，计算指数数字涉及一个公式，通常比较当前变量的值与其在基期的值。然后将该比率乘以100，以百分比表示。例如，如果某种商品在基期的价格为50美元，而在当前年份升至75美元，则指数数字的计算方式如下：(75/50) * 100 = 150。这表明自基期以来价格上涨了50%。理解指数数字对于理解复杂数据至关重要。它们将大型数据集简化为易于消化的信息，使分析师和决策者能够高效地识别趋势、进行比较和得出结论。在数据丰富的时代，解读指数数字的能力可以显著影响研究结果、政策制定和战略规划。此外，虽然指数数字提供了有价值的见解，但它们也存在局限性。它们可能会过于简化现实，或者未能考虑给定情况中的所有变量。例如，反映平均收入的指数数字可能无法揭示不同人口或地区之间的差异。因此，使用指数数字时，结合其他分析工具以获得对主题的全面理解是至关重要的。总之，指数数字是各个学科中的一个基本概念，有助于数据的分析和解释。通过提供清晰的数值表示随时间的变化，它促进了更好的决策并增强了我们对趋势和模式的理解。随着我们继续在一个越来越以数据为驱动的世界中航行，掌握使用指数数字无疑将继续成为各个领域专业人士的重要技能。