1. a)Bar graph

- Advantage: it can easily compare two or three data.

- Disadvantage: if the interval is to high, you can't see the range easily between two categories.

b) Circle graph

- Advantage: shows percent if total for each category.

- Disadvantage: if the categories are not in percent, you need to change them into percent which requires work.

c) Line Graph

- Advantage: shows range and outliers easily

- Disadvantage: if the interval is too high you can't see the range between the two data

d)Double Bar graph

- Advantage: it compares two data across categories

- Disadvantage: if the interval is too high you can't see the range between the two data

2.Graph that can be misleading

- Colour

- Increase the area of the bar

- 3D

2a) Line Graph

Bar Graph

2b) Yes because the sale is increasing every week

4.Line Graph

4b)

Here is a video for bar graphs.

http://www.youtube.com/watch?v=6GK5176auVw.

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