Tables and Graphs

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Tables and Graphs
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Tables

• Title
• Label columns or rows
• Place unit of measurement in top of column or row
• Whats missing?

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Graphs Visual Display of Data
Y Axis Dependent Variable
X Axis Independent Variable
Do you remember where the independent and
dependent variable go?
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Graph Info

• Always need a table first
• Title
• Label axis along with units of measurement
• Scale on axis must be of equal intervals
• One exception is the first interval

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This graph does NOT start at zero, but each
interval is still equal
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Types of graphs

• Bar Graph Information collected by counting

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Line Graph- Shows Trends

• The plotted points or dots represent data
• Circle uncertain values
• Use a best fit line or curve to show the average
  of data

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Estimating Data

• Interpolation-
• Estimating data between two actual data points.
• Extrapolation-
• Estimating data beyond the data points.
• Like this point

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Circle (pie) Graph

• Shows how a quantity is broken into parts
• Sometimes percentage of a whole