What are the knowledge, skills, attitudes & behaviors that highly data literate people possess and demonstrate? Slides for a webinar given on January 16th https://youtu.be/KA_e1uFSWUM

7. © 2018 Data Literacy. All rights reserved. 7
Data Types: NOIR
Qualitative
(categorical)
Quantitative
(numerical)
Nominal
(not ordered)
Ordinal
(ordered)
Interval
(differences)
Ratio
(fractions)
Nominal = “Names”
E.g. Gender, Color
Ordinal = has order,
but differences
between levels is
unknown
E.g. Satisfaction
score, level of pain
Interval – has order,
differences between
values is consistent,
but 0 does not
mean “none”
E.g. Temperature in
°F
Ratio – has order,
differences between
values is consistent,
and 0 means “none”
E.g. Height of
people in the room

8. © 2018 Data Literacy. All rights reserved. 8
Why does data type matter?
0
1
2
3
4
5
6
2013 2014 2015 2016 2017
One Two Three Four
Quantitative
variables make axes
Categorical variables
make “buckets” or
headers
Quantitative
variables make…
sequential
and
diverging
color palettes with
varying saturation
Categorical variables
make colors with
different hues

9. Missoula, MT – 30°F on January 10th Missoula, MT – 15°F on January 16th
Is the temperature “half” of
what it was last Friday?

11. © 2018 Data Literacy. All rights reserved. 11
Starts with A
Starts with B
Starts with C
Animals Sports Fruit AnimalsStarts with A
Starts with A
Starts with A
Starts with B
Starts with B
Starts with B
Starts with C
Starts with C
Starts with C
Sports
Fruit
Animals
Sports
Fruit
Animals
Sports
Fruit
🏀
🍎
🏏
🐻
😺
🍌
🍒
Learning About Reshaping Data with Emojis
“Stacked” or “Record” FormatPivoted Format
🎯🐜

13. The “Average” NFL Player…
…is about 25 years old,
just over 6'2" in height,
weighs a little more than
244lbs and makes slightly
less than $1.5M in salary
per year. Can you tell
which distribution goes
with which trait?
Age
SalaryWeight
Height

22. 61,316 tows

24. What are the most common Makes that got towed?

25. “Ford”
“FORD”
“FORF”
“Forrrd”

26. “Peterbilt”
“Peterbelt”
“Peterbutt”
“Pete”

27. “Mitsubishi”
“Mitsubishit”

28. “Burnt Car”

29. Who needs spell check, anyway?

30. What was the effect of cleaning the Make column?

31. What was the effect of the grouping?

33. In 1642, Abel Tasman was the
first European to discover New
Zealand. He mistakenly though
the two islands were connected,
and named the area between the
Zeehaen’s Bight, after his ship
In 1769, over a century later,
James Cook was the first
European to completely
circumnavigate the pair of islands
that make up the native home of
the Māori people. He correctly
noticed that there was a passage
through, and the two land masses
weren’t connected. The area
between them is now knows as
Cook’s Strait

47. Ethics and Data Science
by DJ Patil, Hilary Mason, Mike Loukides
The 5 C’s:
• Consent
• Clarity
• Consistence and Trust
• Control and Transparency
• Consequences
Princeton Case Studies:
Automated healthcare app, Dynamic sound identification,
Optimizing schools, Law Enforcement ChatBots, Hiring by
machine, Public sector data analytics
https://aiethics.princeton.edu/case-studies/