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Double Bar GraphCovid19 has led the world to go through a phenomenal transition . Elearning is the future today. Stay Home , Stay Safe and keep learning!!! Double Bar Graph, also called doublebar charts, help us to compare or present more than one kind of information, situations, or events instead of just one by using bars.For example, a teacher asked his students about their interest in different games. He found that 20 boys and 15 girls like the game of cricket, while 10 boys and 12 girls are interested in the football. Also 14 boys and 10 girls liked hockey. He asked the students to provide all this information to him properly recorded. Students created singlesingle bar chart on this. But finally they found that by making a doublebar charts they can give all the information in one single chart. How to construct a doublebar charts: 1. Decide what title you will give the graph 2. Decide if you want horizontal or vertical bars 3. Choose a scale 4. Put label on the axes 5. Draw the bars 6. Give two different colors for differentiating two data. Example : Scores obtained by the four friends Ariel,Sai, Deklerk and Tara in the pretest and test are given below. Using that draw a doublebar graph.
1. The title can be clearly seen from question. 2. We will choose vertical bars. 3. Since the scores differ from one another mostly by 5, 10, 15, or 20, it make sense to chose a scale of 10. If the variation between scores were like 1, 2, 3, 4, or 5, it would have been better to choose a scale of 1 or 2 4. We put names on the x axis and scores on the y axis. If we had decided to make horizontal bars, we would have put names on the y axis and scores on the x axis. 5. Finally, we draw bars. The doublebar charts is shown below: From Double bar graph to statistics Home Page Covid19 has affected physical interactions between people. Don't let it affect your learning.
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