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a histrogram
You would use a bar graph to show data changes over time or to show comparisons among items. A line graph can also be used to show data changes over time or comparisons. A pie/circle graph would be used to show the relative amount/size of items in a data set. A scatter plot is used to show trends and similarities in a large number of data points. This link might be useful too. http://office.microsoft.com/training/training.aspx?assetid=rc011097791033&ofcresset=1
A bar graph is best when the data are divided among time periods or other criteria, such as the number of U.S. House members per U.S. state. A line graph is best for data that are constantly changing, such as the outdoor temperature of a city.
1.Graphical Representations makes it easy to understand and interpret data at a glance. 2.It also helps to do comparisons among many things. 3. Moreover it makes data easy to recall.
Bar graph
A scatter plot would be best for non-related data points. A line graph would be best for related data points.
A Bar Graph
Probably a pie (or circle) graph.
The answer depends very much on the sort of data and on what information the graph is meant to convey.
A line graph because all the data is arranged so that variables are represented as a single piont
line graph
line graph