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Bar Graphs

Site: Clare-Gladwin RESD
Course: Michigan Algebra II KHauck
Book: Bar Graphs
Printed by: Guest user
Date: Sunday, May 19, 2024, 4:32 PM

Description

Bar Graphs

Table of contents

Bar Graphs

Bar graphs are used to show the comparison of categorical data. This type of graph consists of parallel bars or rectangles. The lengths of the bars correspond to the frequency with which specified quantities occur within a category of data. When creating a bar graph, the variable along the horizontal axis will usually be categorical while the vertical axis will usually have a quantitative variable.

Example The bar graph below represents the number of defects per 1,000 cars for three factories.

BarGraphEx1-1

Along the horizontal axis the categorical variable is defined as factory A, B, or C. Along the vertical axis the quantitative variable is defined as number of defects per 1,000 cars.

Interactive Activity

Bar Graphs

Video Lesson

To learn how to make double bar graphs, select the following link:

Bar Graphs

Practice

Bar Graphs Worksheet


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Answer Key

Bar Graphs Answer Key


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Sources

Sources used in this book:

Embracing Mathematics, Assessment & Technology in High Schools; a Michigan Mathematics & Science Partnership Grant Project

Holt, Rinehart & Winston, "Displaying Data in a Double Bar Graph." http://my.hrw.com/math06_07/nsmedia/lesson_videos/msm3/player.html?contentSrc=6271/6271.xml (accessed 7/26/2010).

Shodor, "Histograms and Bar Graphs." http://www.shodor.org/interactivate/lessons/HistogramsBarGraph/ (accessed 7/26/2010).

Shodor, "Interactive: Bar Graph." http://www.shodor.org/interactivate/activities/BarGraph/ (accessed 7/26/2010).