The concept of average is very common in mathematics and daily life. Mathematically, average can be defined as adding a set of numbers and then dividing by the number of this set of numbers. This definition emphasizes the core idea of the average concept, that is, dividing a whole into several parts and then calculating the average value of each part.
In mathematics, the average value is a very important statistical index, which can be used to describe the central trend of a group of data. By calculating the average, we can quickly understand the overall situation of a data set and can be used to compare the differences between different data sets. For example, in statistics, the average is an important way to describe a data set, which can help us understand the data better.
Average is often used in daily life. For example, we often hear news reports about the average house price in a certain area, the average salary of a company and so on. The average here is used to describe the average of the whole or part. The average value does not reflect all the specific situations.
It is only the representative value of a whole or multiple parts, and it cannot accurately describe the specific situation of each part. For example, the average score of a class is very high, but specific to each student, their scores may be very different. This is why we need other statistical indicators, such as median and standard deviation, to understand the data more comprehensively.
Average sentence making:
1. The average salary of employees in this company has reached 5000 yuan/month.
2. In order to make a better analysis, we need to calculate the average value of this set of data.
In this city, the average house price has risen to 654.38 million yuan per square meter.
His grades have been very good, and the average score has been above 90.
The average age of this group is 25, the youngest member is only 22, and the oldest member is 30.
The average annual income of this company is more than 500,000 yuan.
7. Her height is only 1.50 meters, which is the shortest student in the class.
8. We need to calculate the average value of each group of experimental data in order to compare the results better.
9. In this class, the average score of students has been very poor, and the teacher is considering taking measures to improve the students' academic performance.
10, the score has been very good, and the average score has been above 90 points, but recently it has been somewhat lax and the score has declined.