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# 2 30 Data Collection

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### Transcript

• 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?