Warm Up

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Warm Up 1.A bar graph uses ____________________ to represent data. 2.True or false: A circle graph shows how data changes. 3.Draw a graph that represents a flag being raised up a flagpole slowly at the beginning and quickly at the end. 4.Solve .

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Warm Up. A bar graph uses ____________________ to represent data. True or false: A circle graph shows how data changes. Draw a graph that represents a flag being raised up a flagpole slowly at the beginning and quickly at the end. Solve. - PowerPoint PPT Presentation

Transcript of Warm Up

Page 1: Warm Up

Warm Up

1. A bar graph uses ____________________ to represent data.

2. True or false: A circle graph shows how data changes.

3. Draw a graph that represents a flag being raised up a flagpole slowly at the beginning and quickly at the end.

4. Solve .

Page 2: Warm Up

Lesson 27: Identifying Misleading Representations of Data

Statistics and Probability

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•When displaying data, components such as labels or scale can make graphs misleading.• The size of increments in the scale can also make a graph misleading.

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Example

• This bar graph shows the houses prices for 2 consecutive years. Explain why it might be misleading.

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Example

• Here is the same graph with a revised scale. Is the graph less misleading now?

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Example

• Explain why the line graph is misleading.

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This graph appeared on FOX News. Why is it misleading? What do you suppose is the purpose for this graph? How would we fix it?

Graph courtesy of http://www.statisticshowto.com/misleading-graphs/

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Homework Questions

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Correcting Homework

• Be kind

• Hold questions until the end

• Return the paper to its owner if there are more than 3 empty squares.

• Be sure to write “C.B. _____________” with your name.

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Homework

• 1st and 2nd hour: Lesson 27 #1-30

• 3rd hour: Lesson 27 #1-15