1. Graphs
Class A
Class B

2. Box - and -
Whisker Plot
Circle Graph
Pictograph
Types of Graphs
Bar Graphs
Plots
Line Graphs
Histogram
Single
Stem & Leaf
Single
Line
Double
Double
Scatter

3. Pictograph
Days of the Week
Fireflies

4. Pictograph Pictographs use pictures to show data
Each picture equals a certain amount of the data
Pictographs have a title
Each picture equals a certain amount of data.
Pictographs need a key.

5. Bar Graph

6. Bar Graph Bar Graphs display and compare data using bars
A bar graph must include:
- a title
- labeled X and Y axes
The bars do not touch
- equal intervals are used on the Y axis
- the bars are evenly spaced apart from each other

7. Double Bar Graph

8. Double Bar Graph
Double Bar Graphs compare two or more sets of data using bars
Double bar graphs must include:
- Title
- Labeled X and Y axes
- Equal intervals are used on the Y axis
- Pairs of bars are equally spaced, but the compared bars are not
- Key

9. Line Graph

10. Line Graph A Line Graph shows change over time Line graphs need:
- Title
- Labeled X and Y axes
- Equal Intervals
- Data displayed by points connected into lines

11. Double Line Graph

12. Double Line Graph
- Equal Intervals
- Data displayed by points connected into lines
- Key
Double Line Graphs compare two groups of related data over time.
Double line graphs need:
- Title
- Labeled X and Y axes

13. Circle Graph

14. Circle Graph
Circle graphs display parts of the data in relation to the entire amount of data
All circle graphs need a title
Each part is called a sector and is labeled to represent a category

15. Histogram
Class Test Scores
Frequency
Test Scores

16. Histogram Histograms show the frequency of data.
Very similar to bar graphs, but use intervals on the X axis.
Bars do touch.
Histograms have a title.
Histograms have two axes which are labeled.

17. Stem and Leaf Plot
Student Heights in Centimeters
1 1
Key: 12
7 = 127 cm

18. Stem and Leaf Plot
Stem and Leaf Plots are a quick way of seeing how many pieces of data fall in various ranges
Plots show the range and the mode of data
Stem and leaf plots have a title, a stem, and leaves
A key explains how to read the stem and leaves.

19. Line Plot Favorite Colors X X X X X X X X X X X X X
Red Blue Green Yellow Purple

20. Line Plot
A line plot shows frequency of the number in a data set using X’s
Easily identifies the mode
All line plots include:
- a title
- a numbered horizontal line

21. Study Time Versus Grades
Scatter Plot
Study Time Versus Grades
100 * * * * 80 * * *
Grade 60 40 20 1 2 3 4 5
Study Time in Hours

22. Scatter Plot Shows how closely two sets of data are related
The closer the sets are related, the closer the points come to forming a straight line.
Scatter Plots include:
- title
- labeled axes
- equal intervals
- corresponding numbers plotted as ordered pairs

23. Box - and - Whisker Plot Hours of Homework 5.25 6.9 6.3 5 7.75 3 4 5 68 9

24. Box - and - Whisker Plot
A Box-and-Whisker Plot displays a large set of data
Gives general idea of how data clusters
Graph includes:
- Title
- Labeled intervals
- Box between lower and upper quartiles
- Whiskers from quartiles to extremes