1. Graphs Created by Leigh Ann Anderson, Joni Jacobs, Lisa Lyman, and Patty Simpson Barnhart Elementary School, Summer 2000 Class A Class B

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

3. Pictograph More Info Fireflies Days of the Week

4. Bar Graph More Info

5. Double Bar Graph More Info

6. Histogram Frequency Test Scores Class Test Scores More Info

7. Line Graph More Info

8. Double Line Graph More Info

9. Circle Graph More Info

10. Line Plot Favorite Colors X XXX XXXX XXXXX RedBlueGreenYellowPurple More Info

11. Stem and Leaf Plot Student Heights in Centimeters Key: 127 = 127 cm More Info 7 8 8 9 1 2 4 4 4 6 6 0 0 2 3 3 4 7 1

12. Scatter Plot Study Time Versus Grades 0 0 20 40 60 80 100 1234 Study Time in Hours Grade * * * * * * * 5 More Info

13. Box - and - Whisker Plot Hours of Homework 8 76 5 4 3 9 6.3 7.75 5 5.25 6.9 More Info

14. Bar Graph b The purpose of a bar graph is to display and compare data. b Bar graphs use bars to show the data. b A bar graph must include: - a title - a title - labeled X and Y axes - labeled X and Y axes - equal intervals are used on the Y axis - the bars are evenly spaced apart from each other Return to Graph

15. Stem and Leaf Plot b Stem and leaf plots are used as a quick way of seeing how many pieces of data fall in various ranges. The reader can quickly tell: - the range - the range - the mode - the mode b Stem and leaf plots have a title, a stem, and leaves b A key is used to explain how to read the stem and leaves. Return to Graph

16. Pictograph b All pictographs have a title. b Rows and columns shape the pictograph. b Label each row and column. b Use pictures to show the data. b Each picture equals a certain amount of data. b Pictographs need a key. Return to Graph

17. Line Graph b A line graph is used to illustrate change over time. b Line graphs need: - Title - Title - Labeled X and Y axes - Labeled X and Y axes - Equal Intervals - Equal Intervals - Data displayed by points connected into lines Return to Graph

18. Double Line Graph b A double line graph is used to compare two groups of related data over time. b Double line graphs need: - Title - Title - Labeled X and Y axes - Labeled X and Y axes - Equal Intervals - Data displayed by points connected into lines - Key Return to Graph

19. Circle Graph b Circle graphs are used to display parts of the data in relation to the entire amount of data. b All circle graphs need a title. b Each part is called a sector and is labeled. b All angles correct (+2/-2 degrees) Return to Graph

20. Double Bar Graph b The purpose of a double bar graph is to compare two or more sets of data. b Uses bars to show the data. b Double bar graphs must include: - Title - Title - Labeled X and Y axes - 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 Return to Graph

21. Line Plot b A line plot shows the spread of all the data on a number line. b Easily identifies the mode. b All line plots include: - a title - a title - a numbered horizontal line - a numbered horizontal line - data displayed by use of X’s - data displayed by use of X’s Return to Graph

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

23. Box - and - Whisker Plot b Displays large set of data. b Gives general idea of how data clusters. b Graph includes: - Title - Title - Labeled intervals - Box between lower and upper quartiles - Whiskers from quartiles to extremes - Median, quartiles and whiskers labeled Return to Graph

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

25. Leigh Ann Anderson Joni Jacobs Lisa Lyman Patty Simpson Maryland Satellite Technology Academy Summer 2000