- Data can be presented using bar graphs, double bar graph, circle graph, line graphs, and pictographs.
- Different graphs may provide different information and display certain types of data better.
advantages: -are best for comparing data across categories.
disadvantages: - graph categories can be recorded to emphasize certain effects.
-Use only with discrete data.
double bar graph:
advantages: are best for comparing two sets of data across categories.
disadvantages: The intervals on the double bar graph can be inaccurate.
advantages: are best for comparing categories to the whole using percent.
disadvantages: it takes a lot of time and there is a special way of doing the circle graph.
advantages: are best for showing changes in data over time.
disadvantages: it only will show data over a long period of time.
advantages: are best for comparing data that can be easily counted and represented using symbols.
disadvantages: icons must be the same size and it is hard to see how much the picture is showing.
The following chart shows Pizza Sub Sales over a month. What 2 graphs would show the information accurately?
a) I would use a line graph or i could use a bar graph to show this information accurately.
b) yes, i would continue because the sales are going up a lot and that shows that the pizza subs are very popular and they should still sell them.
a) If i were to choice a graph i would choice the line graph because it shows that the sales are increasing.