arithmetic mean的意思|示意

美 / əˈriθmətik mi:n / 英 / əˈrɪθmɪtɪk min /

算术均数；等差中项

arithmetic mean的用法详解

Arithmetic mean, commonly referred to as the average, is an important concept in mathematics. It is used as a measure of central tendency and is defined as the sum of values of a set of numbers divided by the total number of values in the set.

The basic formula for arithmetic mean is as follows:

Arithmetic Mean = (Sum of all values) / (Total number of values)

For example, if we have a set of numbers {10, 20, 30}, then the arithmetic mean can be calculated as follows:

Arithmetic Mean = (10 + 20 + 30) / 3 = 60 / 3 = 20

The arithmetic mean is used in many statistical calculations and can provide a good indication of a data set’s central tendency. For example, if you were attempting to calculate the average IQ of a group of people, you could use the arithmetic mean to get the average.

The arithmetic mean is also used in financial calculations such as calculating the average return on an investment portfolio or the average salary of a company’s employees. It is also frequently used in science, as it is an important tool for measuring the average of a population’s characteristics.

In general, the arithmetic mean is an important calculation for summarizing, understanding, and interpreting data. By using the arithmetic mean, we can quickly and accurately gain insights into large amounts of data.