WARM UP

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WARM UP

• What is the difference between a bar graph and a
  histogram?
• How do you find the class width?
• A line graph represents what?
• Make a stem and leaf plot of the following data
  points.
• 468 548 632 842 745 567
• 821 598 435 387 830 926

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Section 2.5
Misleading Graphs
There are FIVE ways we will look at that people
try to mislead you with their graphs.
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1) TRUNCATED GRAPHS
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Ways to Mislead
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Truncated

• The vertical scales of graphs are altered to
  distort information.

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What is wrong with this graph?
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Are they the same?

• The graphs below show the number of people who
  rode buses from September through February.

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• 2) SCALING

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Ways to Mislead
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SCALING

• The size of a graph or a figure is altered to
  distort information.

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TOO MUCH INFORMATION

• 3) HARD TO READ

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What is wrong with this graph?
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4) Misuse of data or percentages
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5) Misuse of pictures
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CREATE TWO GRAPHS

1. One regular graph
2. One misleading graph
3. Label both graphs clearly!