Average distribution means having a pile of things, and the object to be distributed at this time has nothing in his hand. To be fair, this pile of things is evenly distributed, and everyone has the same amount of things in their hands. On average, the premise is that there is a group and everyone has something in their hands. If these quantities are added up and evenly distributed, the number obtained is the average, which is an imaginary number.
? Secondly, we know the background of the average. For example, we test students in two classes, and the number of students in each class is different. We also need to know which class has better grades. How to judge? We know that one person's grades are not good, and everyone's grades are good, so it leads to whether such a data can be generated to solve such a problem. The number of people is different, how can it become data? Move more and make up less, and become the same data. No matter how many people there are, everyone becomes this fixed number on average, so that we can compare the overall level of the two classes and know which class is better.
? This figure does not reflect a person's actual achievement, but represents the overall degree of a set of data, which is the role of the average. We know that we can't collect, sort out and analyze data without studying these data, which is why the statistics part should study the average.