It looks like a line graph with shading underneath the line. The triangle with the largest area would represent the topping that got the most votes, while the toppings that got the least votes would be represented by smaller triangles.Īn area chart or area graph combines some of the characteristics of line graphs with the characteristics of bar graphs. In this case, each triangle would represent a different topping.
For example, if you took a survey of the students in your class and asked them each about their favorite pizza, you could use the results to make a pie chart that would show what toppings earned the most votes. Pie ChartsĪ pie chart is a circular graph where the pieces of the pie are used to represent a percentage of a whole. It makes more sense for red to be used for the High temperature and blue to be used for the Low temperature. People often associate meanings with different colors, such as red for hot and blue for cold, so in the example above it could be confusing if the colors of the lines were switched. It is important to be aware of color choices when using graphs.
But, what you decide to use should largely depend upon whether you are showing how something changes over time (line graph) or showing comparisons between discrete things (bar graph). You can create a line graph from the same data table as a bar graph, and vice versa. Including 2 lines on the same graph lets you visualize comparisons, such as the difference between the High and Low temperatures for each day. You can also easily determine when the value you are graphing was highest or when it was lowest. By analyzing the line graph, you can get a better idea of the changes that took place as time went on. If it is hotter one day than on the day before, the line will go up. For example, you could use a line graph to watch the changes in temperature in the month of March. Line GraphĪ line graph is great for showing continuous change over time. We must think about whether the sizes, shapes and colors of graphics are helping to make information more clear and helping to increase understanding. For example, it would be very confusing if the pictograph above used images of oranges instead of apples to represent the number of apples eaten. But, it is very important that we don't misrepresent information by the way that we use images and graphics. Pictures can say a lot more than numbers. One bar would represent the number of boys, and another bar would represent the number of girls. For example, if you count the number of students in your class who are girls and the number who are boys, you could make a bar graph to compare the totals. You can use the bar graph to make comparisons. Bar GraphĪ bar graph is a graph that shows you information about two or more discrete objects, events, locations, groups of people, etc. The purpose of this article is to highlight some of the common types of graphs and charts that you can create with Excel, explain when you might use the different types, and provide a great set of resources for learning about and teaching about charts and graphs.
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There are good reasons for learning to create graphs by hand, but there are also some great tools that everyone ought to learn how to use at some point, such as Excel. Charts and graphs are also critical to engineers, scientists and financial analysts who use them to help visualize large amounts of information, make better decisions, and communicate their results to other people. News publishers use graphics all the time to show comparisons and explain important trends for things such as weather, gas prices, crime rate, or who is winning an election and by how much. The most common place for people to see charts and graphs is in the news. A good picture is worth a thousand numbers. Charts and graphs are used to make information clearer and easier to understand.
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