Bar Graph -

Advantage - best for comparing two sets of data across categories

Disadvantage - not accurate if the intervals are going up to big and you can't compare more than two sets of data

Double Bar Graph -

Advantage - best for comparing two sets of data across categories

Disadvantage -

Circle Graphs -

Advantage -best for comparing categories to the whole using percents. The sum of the percents in a circle graph is 100%.

Disadvantage - you have to figure out the percentages in the data

Line Graphs - Advantage - are best for showing changes in data overtime. Line graphs usually shows a trend.

Disadvantage - if the interval are to big apart, might not be able to see clearly

Pictograph -

Advantage - best for comparing data that can easily counted and represented using symbols

Advantage - best for comparing data that can easily counted and represented using symbols

Disadvantage - not clear is less than a whole

2. How can graphs be misleading. Show 3 ways. 1. Distorting the Scale - making the break in the y axis.

2. Distorting the visuals - making the pictures in the pictograph bigger.

3. Distorting the size of bars - making 1 bar look bigger

2. Distorting the visuals - making the pictures in the pictograph bigger.

3. Distorting the size of bars - making 1 bar look bigger

**2a) The following chart shows Pizza Sub Sales over a month. What 2 graphs would show the information accurately?**

**The two graphs that would show the the information accurately are bar graphs and a line graph.**

The reason is that the trend is increasing.

**4. Below you see 2 different examples of graphs showing healthy choices sold at the canteen. If you had to convince Mrs Mota that we should continue selling healthy choices which graph would you choose?**

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