13.4 Misleading Statistics
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1 13.4 Misleading Statistics Objective: Recognize how statistics can be misleading. Mr. Williams [email protected] Image: 'Wired Tech Trend' www.flickr.com/photos/35034356424@N01/69621586
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Transcript of 13.4 Misleading Statistics
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13.4 Misleading StatisticsObjective: Recognize how statistics can be misleading.Mr. Williams [email protected]
Image: 'Wired Tech Trend'www.flickr.com/photos/35034356424@N01/69621586
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Scale
Line Graph
25
50
0
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Bar Graph
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Average Movie Ticket PricePrice in Dollars
Price in Dollars
Average Movie Ticket Price
Which graph makes it look like prices increased dramatically? Why?
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Class Average on the Benchmarks
69.20 % 74.07 % 62.96 %
Which one do you think is right?Which one do you want to use as the average?
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Which one is right? Why are they different? 69.20 %
74.07 %62.96 %
Image: 'stirnrunzeln b/w'www.flickr.com/photos/65346428@N00/1221737578
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Mean = 69.20 %
Median = 74.07 %
Mode = 62.96 %
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Work with your group on numbers 2 & 3 on page 649.
Image: 'Lonely desks'www.flickr.com/photos/84792342@N00/330137161
