Devon's Graphing Post

1) Bar graphs are the best for comparing data across categories. The disadvantage of bar graphs are

• Graph categories can be reordered to emphasize certain effects
• Use only with discrete data

2) Line graphs are best used to show data over a long period of time.
The disadvantage of using a line graph are

• Use only with continuous data

3) Pictographs are best to show data that can easily be counted and represented.

The disadvantage of a pictograph is

• Hard to quantify partial icons
• Icons must be of consistent size
• Best for only 2-6 categories

4) Circle graphs are best to show percents, part to hole, and categories.
The disadvantage of a circle graph are

• No exact numerical data
• Hard to compare 2 data sets
• "Other" category can be a problem
• Total unknown unless specified
  
  
• Best for 3 to 7 categories
• Use only with discrete data

2) Graphs can be misleading are

• Distorting the scale

• Distorting the visuals

• Distorting the size of bars

2a) line graph and a bar graph

2b) Yes I would continue selling Pizza Subs Because the graph is showing that in each week, the items that are sold are getting higher.

4. I would choose the line graph to get Mrs. Mota to continue selling healthy choices in the canteen.

4a)