1. histogram method: this chart shows the size of data in the form of columns or bars, and can visually compare the differences between different data. It is often used to compare the sales of various departments, the population of each city and the market share of different products.
2. Pie chart method: Pie chart is a chart form that uses sector area to represent different types of data. Through the pie chart, we can clearly see the proportion of each category, which is convenient for observing the distribution of data. Pie charts are usually used to show market share, population structure and budget allocation.
3. Line chart method: Line chart shows the changing trend of data with time or other factors in the form of broken lines, which can clearly reflect the growth or decrease of data. Line charts are usually used to analyze sales, stock prices and population growth.
4. Scatter chart method: Scatter chart can clearly see the relationship and distribution of data by displaying data points in the form of scattered points on the coordinate system. Scatter charts are often used to study the relationship and trend between two variables, such as the relationship between weight and height, and the relationship between temperature and rainfall.
5. tabular method: tabular method is the most common form of report statistics. It classifies and arranges data, which is convenient for data comparison and calculation. Tables are often used to sort out various statistical data, such as census, corporate finance, etc.