graphs new
TRANSCRIPT
![Page 1: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/1.jpg)
• Graphs
![Page 2: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/2.jpg)
• Estimation
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![Page 3: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/3.jpg)
• Accuracy & Precision
• Accuracy = How close is it to real value
• Precision = How close is each
measurement to each other
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![Page 4: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/4.jpg)
• Mean, Median, Mode
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- Mean = Average
- Median = Middle
- Mode = Most often
![Page 5: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/5.jpg)
- Graphs vs. Text
68
+ Which is better?
At age 1, Sarah was 75 cm
tall. By the time she turned 2,
Sarah had grown 10 cm. By
age 3, she had grown another
10 cm. At age 4, Sarah was
100 cm tall.
![Page 6: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/6.jpg)
Bar Graphs
• Use
– Compare different items
– To one measured amount
![Page 7: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/7.jpg)
Circle or Pie Graphs
• Use
– Compare different items
– To one whole amount
![Page 8: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/8.jpg)
Line Graphs
• Use
– Compare one variable
– To another variable
![Page 9: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/9.jpg)
Steps
• 1.Draw Axis
![Page 10: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/10.jpg)
2. Label
• x- axis (Manipulated variable)
– What you did?
• y-axis (Responding variable)
– What you measured?
• Add Units!
![Page 11: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/11.jpg)
3. Create Scale
• Start zero to highest number
• Distribute evenly
![Page 12: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/12.jpg)
4. Plot Data
• (x,y)
![Page 13: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/13.jpg)
- Line Graphs
+ Example Experiment – Boiling Water
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![Page 14: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/14.jpg)
- Line Graph
+ Draw Axis
√ X “What you changed”
√ Y “What was measured”
+ Create Scale
+ Plot Data
+ Draw best fit line
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![Page 15: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/15.jpg)
- Best Fit Line
+ Follow general trend
+ Include as many points as
possible
+ Have same # of points above
and below
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![Page 16: Graphs new](https://reader033.vdocument.in/reader033/viewer/2022052910/5599fead1a28ab14098b469f/html5/thumbnails/16.jpg)
- Identify Trends
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