%CODE1% Line Graphs Quiz
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BAR GRAPHS
When you have finished this page, try the Bar Graphs Quiz.
Bar graphs are an excellent way to show results that are one time, that aren’t continuous – especially samplings such as surveys, inventories, etc. Below is a typical survey asking students about their favorite after school activity. Notice that in this graph each column is labeled – it is also possible to label the category to the left of the bar.
In this case, the numbers for each category are across the bottom of the chart.
A bar chart is marked off with a series of lines called grid lines. These lines typically mark off a numerical point in the series of numbers on the axis or line. In this case, each grid line going up and down marks a multiple of 20 as the graph is divided such.More gridlines can make it easier to be exact with the amounts being shown on the bar graph, but too many can make it confusing.
Notice that for data that does not fall evenly on a multiple of 20, the bar is in between two grid lines.
Bar graphs are useful to get an overall idea of trends in responses – which categories get many versus few responses.
Favorite Student After School Activity
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BAR GRAPH QUIZ
Click on the radio buttons in front of the correct answers to the questions about the graph.
CIRCLE/PIE GRAPHS
When you have finished this page, try the Circle/Pie Graphs Quiz.
Circle or pie graphs are particularly good illustrations when considering how many parts of a whole are inception. In the table below both the number of hours in a whole day devoted to certain activities is listed as well as the percent of time for each of these activities. The pie chart is then divided very much as a baker’s pie would be into slices that represent the proportional amounts of time spent on each activity.
To the right of the pie chart is a legend that tells which color stands for which category. In addition, the percents are also near the pie slice that stands for that particular amount of time spent.
Percent of Hours of a Day Spent on Activities
ACTIVITY | HOURS | PERCENT OF DAY |
Sleep | 6 | 25 |
School | 6 | 25 |
Job | 4 | 17 |
Entertainment | 4 | 17 |
Meals | 2 | 8 |
Homework | 2 | 8 |
Circle/Pie Graph Quiz
Click on the radio buttons in front of the correct answers to the questions.