ignite charlotte 1: the problem with data and statistics by adam q. holden-bache

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O’REILLY The Problem with Data and Statistics Adam Q. Holden-Bache @adamholdenbache @adamholdenbache

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The slides to my Ignite Charlotte 1 presentation titles "The Problem with Data and Statistics." Video of presentation can be found here: http://www.ignitecharlotte.org/2010/08/ignite-charlotte-1-talk-by-adam-q-holden-bache-the-problem-with-data-statistics/

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Page 1: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

The Problem with Data and Statistics

Adam Q. Holden-Bache @adamholdenbache

@adamholdenbache

Page 2: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

82.4% of people like statistics

@adamholdenbache

Page 3: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

“Statistics is the art of never having

to say you’re wrong.”- C. J. Bradfield

@adamholdenbache

Page 4: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

97% of all statistics are made

up

@adamholdenbache

Page 5: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

Benefits of charts and graphs

• Make a comparison• Show a relationship

• Highlight a trend

@adamholdenbache

Page 6: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

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Page 7: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

QuickTime™ and a decompressor

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Page 8: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

QuickTime™ and a decompressor

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Page 9: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

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Page 10: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

QuickTime™ and a decompressor

are needed to see this picture.2 MIL

4.5 MIL

1.5 MIL

10 mos. 6 mos. 15 mos.

Page 11: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

QuickTime™ and a decompressor

are needed to see this picture.

Page 12: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

QuickTime™ and a decompressor

are needed to see this picture.

Page 13: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

QuickTime™ and a decompressor

are needed to see this picture.

Page 14: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

QuickTime™ and a decompressor

are needed to see this picture.

Page 15: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

The 4 questions to ask yourself when

considering statistics…

@adamholdenbache

Page 16: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

1. Who did the study?

@adamholdenbache

Page 17: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

2. What are the statistics

measuring?

@adamholdenbache

Page 18: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

3. Who was asked?

@adamholdenbache

Page 19: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

4. How were they asked?

@adamholdenbache

Page 20: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY@adamholdenbache

QuickTime™ and a decompressor

are needed to see this picture.

Page 21: Ignite Charlotte 1: The Problem with Data and Statistics by Adam Q. Holden-Bache

O’REILLY

“Statistics are no substitute for judgement.”

- Henry Clay

@adamholdenbache