Download Communicating with Graphs

Objectives 1-3
1.
Identify three types of graphs and explain the
ways they are used.
2.
Distinguish between dependent and
independent variables.
3.
Analyze data using the various types of
graphs.
Vocabulary
1. Data
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Graph- visual display of information or data.
Line graphs
Bar graphs
Circle graphs
Graphs make it easier to understand complex
patterns by displaying data in a visual manner.
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They show any relationship where the
dependent variable changes due to a change in
the independent variable.
Changes over time
More than one event
X-axis is the independent variable
Y-axis is the dependent variable
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A bar graph is useful for comparing
information collected by counting.
Bar graph are very useful for comparing
different things.
X=IDV
Y=DV
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A circle graph, or pie graph, is used to show
how some fixed quantity is broken down into
parts.
The circular pie represents the total.
The slices represent the parts and usually are
represented as percentages of the total.
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Graphs are a visual representation of data
Scientists often graph their data to detect patterns
The type of graph used is based on the conclusions
you want to identify
A line graph shows how a relationships between
two variables changes over time
Bar graphs are best used to compare information
collected by counting
A circle graph shows how a fixed quantity is
broken down into parts