beauty and the beast: 5 ways data visualizations lie · 2019-10-31 · beauty and the beast: 5 ways...
TRANSCRIPT
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Beauty and the Beast:
5 Ways Data Visualizations Lie
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Mum of a 15 month old
A little about Meltem Rijkers-Oktay
Big data visualization fan
Annoyingly perfectionist
Better world
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The storyHello! I am Mel the Marketing Manager…
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THE BEAUTY
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Interest in International Education
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Interest in International Education - United Kingdom
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Interest in International Education – Business & Management
United Kingdom
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Interest in International Education – Business & Management
Retail Management United Kingdom
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Interactive Dashboards
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▪ Can you send me how much % of your visitors are from
Portugal?
▪ Do you have visitor statistics so I can see if it fits my
target group/strategy?
This doesn’t match with our target countries, we don’t think it is a good channel to promote.
• Data I need for decision making
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Data Scientist vs Toddler
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DATA PEOPLE
Data People
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DATA PEOPLE
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DATA PERSON’S
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THE BEAST
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1) Missing / Incomplete Data
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Missing data
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Missing data
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Internet Accessibility
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Missing data
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2) Data bias
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Types of bias
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Types of bias
Confirmation Bias Availability Heuristic
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The Simpson’s Paradox
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Types of bias
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3) Not Enough Data / Not Representative
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4) Misleading visualisation
Should you avoid using misleading data visualisation just to support your argument?
YES50%
AnswersOther than“Yes”
50%
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5%
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18%
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332,033 16,421
74,268 13,376
5%
18%
22%
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% of studies per country
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5) Correlation vs causation
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Shark attack & Ice-cream
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Storytelling with data
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EXERCISE
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Indian Students looking to study abroad
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Indian Students in Canada Statistics
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QUESTIONS?