This document discusses various methods for collecting and displaying data, including frequency tables, line plots, bar graphs, picture graphs, line graphs, stem-and-leaf plots, histograms, and circle graphs. It also explains how to calculate the mean, median, mode, and range of a data set by adding and dividing numbers, ordering values, identifying the middle number, finding the most frequent number, and subtracting the smallest number from the largest number.

1. Data Collection 12/16/09 EQ: How do I collect and read data?

2. Frequency Table

3. Line Plot

4. Bar graph

5. Bar graph

6. Picture graph

7. Line graph

8. Stem & Leaf

9. Histogram

10. Circle Graph

11. Circle Graph

12. Circle Graph

13. Mean Average Add numbers together and divide by total number

14. Mean 3 + 3 + 8 + 6 20 / 4 = 5

15. Median Put numbers in order It is the number right in the middle

16. Median 5, 8, 3, 2, 4 2, 3, 4, 5, 8 Median = 4

17. Mode Number that occurs most frequently 2, 3, 7, 3, 4, 5 Mode – 3

18. Range Put numbers in order 5, 8, 3, 2, 4 2, 3, 4, 5, 8

19. Range Subtract smallest value from largest 8 – 3 Range = 5

20. EQ: How do I collect and read data?