Double Bar Graphs Re-cap... What are the different types of graphs we have learned about? What are some of the things are graph must include? What is.

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Presentation transcript:

Double Bar Graphs

Re-cap... What are the different types of graphs we have learned about? What are some of the things are graph must include? What is the difference between a line graph and a bar graph?

Bar Graphs The horizontal axis shows the categories of data (i.e. – eye colours) How Many Pets # of Studnets Owners Types of Pets r The vertical axis shows the amount of data. The amounts can be shown as consecutive (1,2,3,etc.) or in intervals (2,4,6,8,etc.)

On Your Bar Graph You Must Have A Title Labels on both axes Categories and amounts on the axes And your data shown in vertical bars

If I wanted to survey the class, and I wanted to show the differences in results from the boys and girls, what would be the best suited graph to display this data?

Double Bar Graphs Number of Students Favourite Movie Genre Popular Movie Genres The two bars represent different parts of the data. For example, girls and boys or different grades. This makes it easier to compare the two sets of data. Like the bar graph, the vertical axis shows the amount of data and the horizontal axis shows the categories of data. For an example, look at the graph. 

What do you Need on Your Double Bar Graph? On your double bar graph, you need… Labels on the axes A title 2 bars per category A legend, showing what each bar represents Don‘t forget: The two bars represent different parts of the data. For example, girls and boys. This helps you to compare your data more easily.

Sliding Bar Graphs Sports Students Participate In Horse Back Riding Hockey Soccer Girls Boys The vertical axis shows the categories of data (sports, in this case) The bars showing the data are in a horizontal line with their category, and the way that the data is read is from the 0 on the horizontal axis line, reading one way for one bar, the other way for the other bar The horizontal axis shows the amounts (students)