1. Advantages and disadvantages of types of graphs

2. Data can be presented using numerous types of graphs
Data can be presented using numerous types of graphs. Name as many graphs as you can

3. Data can be presented using numerous types of graphs
Data can be presented using numerous types of graphs. Name as many graphs as you can
Decide what type of graph you need to use by thinking about what it is you are trying to show (comparison, change over time, part of whole, proportion…) Different types of graphs show different information and different types of data better.

4. BAR GRAPHS Best for comparing data across categories
Can see data values
Double bar graph can be used to compare two sets of data (or more really)
Visually strong graphs
Limitations: can be distorted to manipulate data

5. CIRCLE GRAPHS Best for comparing categories to the whole using percent
Each section shows the percent total for each category
Easy to draw conclusions about ‘most and least’
Visually appealing
Limitations: No exact numerical data (don’t know how many or how much in total or each category), hard to compare two sets of data, “other” category can be a problem, can be difficult to draw

6. LINE GRAPHS Best for showing changes in data over time
Can quickly analyze data and spot trends. Can somewhat see exact data
Can often make predictions
Can compare sets of data
Limitations: Not super visually appealing

7. Pictograph Uses a symbol to represent a quantity of data
Best for comparing data that can be easily counted and represented using symbols
Easy to read and visually appealing
Can display lots of data
Limitations: very simplistic, hard to know exact count because of partial symbols

8. Scatter plot
Used to show relationship between two categories (i.e. time spent studying vs. test score, age vs height)
Used to see if two things are related
Can see all the data entries
Can see trends (dots close together) and outliers (dots all on their own)
Limitations: hard to visualize results if too much data, sometimes get no relationship shown

9. histogram A type of bar graph that groups numbers in ranges
Visually strong, easy to see trends
Good to use when range of data is big (very small to very large answers. i.e. height of trees in a forest)
Limitations: cannot read exact data because it is grouped into categories, hard to compare sets of data

10. Task:
Pages #s 3-11 and the reflect question at the bottom of the last page