![]() Usually it shows relative sizes and compares one component to the whole set (100 %). In the first months there were more costs than incomes, but in the next few months it has changed and the shop owner started to make money.Ī pie chartis a proportional area chart, made of a circle which is divided into segments. comparison of revenues and expenditures of a newly opened shop. It can be used for a Comparison of positive and negative data, e.g. In our example the x-axis can represent different sports, the y-axis the number of people and the colored bars men, women and children.Ī positive / negative bar chartis used to show both positive and negative developments. This kind of bar chart is like the bar chart 1, but adds a third characteristic (the different colored characteristics). The yellow line could represent vegetarians. It could also show a trend, i.e. how eating habits have changed over the last year. The social media represented by the blue line has been well used in the beginning but soon was overtaken by the social media represented by the yellow line. how the use of three different kinds of social media have developed. This line chart could show a development, e.g. Therefore it is mostly used to show trends or developments. Line chartĪ Line chart uses lines to indicate values, usually over a period of time. Trend: It could show a development over five years, how the number of car users have changed. So the chart shows that the second and the fifth week were the sunniest ones.Ĭomparison: The bar could also show how many students go to school on foot, by bike, bus, car etc. The least votes were given to the party represented by the green bar.Ĭontrast: It could also represent the number of sunny days during a five week holiday. The party represented by the blue bar won, closely followed by the party represented by the red bar. Proportions: This bar chart could show the outcome of a vote in which five different parties have participated. It is used mostly to show proportions, trends, comparisons or contrasts. It uses rectangles (bars) to visualise information. Bar chartĪ bar chartis often used to compare values of items at a certain point of time. You will find explanations for these phrases. Look at this list to learn more about graphs. ![]() Usually the basis is 100 %, and the different proportions are added up to make 100% in total.Ī trend is a pattern that can help us to predict what may happen/develop in the future.ĭevelopment is a process of change or transformation.Ī statistical spread is used to measure the central tendency (like a median) of data. It corresponds to other parts or shares of a whole. ![]() Usually used when making a comparison to show differences.Ī proportion is a part or share. To understand what a graph shows you, you need to understand the following phrases:Ī comparison is made when you analyse things to see similarities and differences.Ī contrast is the difference between two sets of information. ![]()
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