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Steps to a Good Graph

Steps to a Good Graph. Step 1- Selecting Graph Type. Line graphs compare 2 variables (temp. vs time, # living organisms vs. pH). Bar graphs are used for comparing two or more values that were taken over time or on different conditions, usually on small data sets.

leonard-gibson
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Steps to a Good Graph

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  1. Steps to a Good Graph

  2. Step 1- Selecting Graph Type • Line graphs compare 2 variables (temp. vs time, # living organisms vs. pH). • Bar graphs are used for comparing two or more values that were taken over time or on different conditions, usually on small data sets. • Pie charts used to show data as part of 100%. • Histographs used to show age grouping vs. # organisms in each group.

  3. Line Graph • Independent Variable goes on the X-axis • Dependent Variable goes on the Y-axis

  4. Bar Graph Data sets (groups being compared) on X-axis # on Y-axis

  5. Pie Graph % out of 100%

  6. Histograph Show how many people are living in different age groups.

  7. Step 2 – Title your Graph • All graphs need a title explaining what you are graphing.

  8. Step 3 – Label Your Axes • Make sure you label your X-axis with the name of the independent variable. • Label the Y-axis with the name of the dependent variable.

  9. Step 4 – Check your Scale • Make sure that you equally space your values on the X and Y axes.

  10. Step 5 – Draw the Graph • Make sure you connect the dots or make the bars. • If using more than 1 data set, create a key with colors or symbols.

  11. Graphing data Why does it help analyze the results?

  12. Monthly Average CO2 concentration, Mauna Loa, Hawaii

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