Organizing and Graphing Data

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Organizing and GraphingData
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Data Tables (organize data)

• To make a good data table do the following
• 1. use a descriptive title (also do this for a
  graph)
• 2. use words to describe what measurements were
  collected
• 3. use units to describe how the data was
  measured (put this in parentheses)
• 4. collected data in ordered pairs
• 5. make it neat!

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Data Table Example
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Graphing Data (analyze and interpret data)

• X-axis the horizontal axis this is where the
  independent variable is placed.
• Y-axis the vertical axis this where the
  dependent variable is placed.
• (WE USE LINE GRAPHS IN PHYSICAL SCIENCE)

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Labeling the axes

• For both the x and y axis you must do the
  following
• Use a word or words to describe the data on each
  axis.
• Write the units the data was measured in on each
  axis. Put this in parentheses.
• Number the axes with even numbered intervals. The
  x-axis intervals DO NOT have to match the y-axis
  intervals.

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Best Fit Graph

• Shows an average of data and allows you to
  estimate data.
• Two ways to estimate
• Interpolate- estimate data WITHIN plotted points.
• Extrapolate estimate data OUTSIDE plotted points

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Best Fit Example