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Types of Graphs

Types of Graphs. PIE Graph LINE Graph BAR Graph PICTURE Graph. Pie Graph. Use for percentages Should total to 100% or 360 degrees. Line Graph. Use with data that changes continuously. Bar Graph. Make comparisons between different variables very easy to see

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Types of Graphs

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  1. Types of Graphs PIE Graph LINE Graph BAR Graph PICTURE Graph

  2. Pie Graph • Use for percentages • Should total to 100% or 360 degrees

  3. Line Graph • Use with data that changes continuously

  4. Bar Graph • Make comparisons between different variables very easy to see • Clearly show trends in data, meaning that they show how one variable is affected as the other rises or falls

  5. Picture Graph • Shows the same type of information as a bar graph

  6. Important things that MUST be on a graph • X-axis and Y-axis • Title and Sub titles on X-axis & Y-axis • Units and Numbering on X-axis & Y-axis • Legend and Key

  7. X-axis and Y-Axis • X-axis is the Independent Variable • on the horizontal line • chosen by the experimenter • Stays constant, controlled • Example – Time • Y-axis is the Dependent Variable • on the vertical line • variable that CHANGES and is measured • Example – Weight (grams) or Height (cm)

  8. Title and Subtitles of Graph • Titling your graph allows other people to read your graph and understand what the graph is all about • Example- “Student’s Favorite Juices” • Subtitles identify the variables being measured • Example – Juices • Example – Number of Students

  9. Units and Numbering • Numbers and units on the axis must be in even increments and evenly spaced • Every line does not need to be numbered • You must stay consistent and use all of the graphing area • Numbering Example – 2,4,6,8 • Units Example – Red, Orange

  10. Legend or Key • If making a multiple line graph you MUST have one • Not always necessary

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