1. Use your notes to list the different types of graphs. Please list the advantages and disadvantages of each graph.

**Bar Graphs - are best compa**

**ring data across categories**Advantage - you can easily compare it to different categories

Disadvantage - you cant really see the exact numbers in the bar graph

*Double Bar Graphs - are best for comparing two sets of data across categories*Advantage - you can compare the two sets of data at the same time

Disadvantage - you could get confused by the two sets of data that are together even though they are black and white

*Circle Graphs - are best for comparing categories to the whole using percents. The sum of the percents in a circle graph is 100%*Advantage - there good for comparing percentages in a whole

Disadvantage - you have to work to find the percent of the category

*Line Graphs - are best for showing changes in data over time*Advantage - you could easily show the progress you have over time

Disadvantage - the exact amount isn't clear

*Pictographs - are best for comparing data that can be easily counted and represented using symbols*Advantage - you know the exact number

Disadvantage - all your data needs to be even

2. How can graphs be misleading. Show 3 ways.

- Distorting the size of the bars

**(making one larger than the other)**- Distortion in the scale

**(break down the y-axis)**

- Distortion the bars in the graph

**(change one bar to a different color)**3. a) The following chart shows Pizza Sub Sales over a month. What 2 graphs would show the information accurately?

**I would use a bar graph and a line graph to represent this information accurately.**

3. b) If you were selling Pizza Subs would you continue? How does your graph explain your answer.

**I would continue to sell the Pizza Subs because it shows that when I look at both graphs its showing that the sales every week were increasing. That is the**

*trend*would be going up.

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?

**because it shows that the**

*line graph**of the sales of healthy food items were increasing and or decreasing in the line graph.*

**trend**4. a) Change each graph so that your information looks even MORE impressive. You may not change the data just the graphs.

Here are some links that could help you (=

Here's a video that could help you understand more about

**bar graphs**!
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