Data Science Test 1 Study Guide with
Complete Solutions
-keep in mind what is interesting to the audience
-come up with the ending before figuring out the middle
-put it on paper
-find the essence of story and the simplest way to tell it
All are crucial in creating the most effective data visualization possible; allows creator to
stay organized and make sure that he and his audience understands the visualization -
ANSWER-What are the rules for storytelling?
1. my understanding of the (business) problem
2. How will I measure the (business) impact?
3. What's the available data?
4. The initial solution hypothesis
5. The solution
6. the (business) impact of the solution
need all of these steps in order to tell and complete whole story behind the visualization
- ANSWER-What are the steps for communicating an analysis (and what do they
mean)?
How do they relate to data visualizations?
1. what are your hypotheses?
2. What are your biases?
3. What is the sample (size)?
4. What is the data source?
5. How good are your (customer) measures? - ANSWER-What are Hayes' five
questions to prove a set of data is trustworthy?
33% - ANSWER-what percentage of business leaders do not trust the information they
use to make decisions?
80% of the time - ANSWER-How often was Stein able to eventually predict the gender
of a caller?
a title, description, and data type - ANSWER-What are the elements of data that are
metadata?
a value - ANSWER-what are the elements of data that are just simply the data?
Answering the questions "why" and "how" - ANSWER-According to Silver's article "What
the fox knows", the "explanation" step involves what?
, bar charts or pie charts - ANSWER-What types of charts lend themselves to categorical
values?
Both tell a story using data - ANSWER-What are the similarities between infographics
and data visualizations?
collection, organization, explanation, and generalization - ANSWER-what are the four
steps for turning data into information?
content
context
construction - ANSWER-what are the basic elements of data visualizations
Data - ANSWER-raw, unorganized facts
data always susceptible to human error
The signal problem - ANSWER-what are sources of bias in data?
data is unorganized while information is process/organized to be useful - ANSWER-
What is the difference between data and information?
Data Science - ANSWER-the study of the generalizable extraction of knowledge from
data
direction of causality - ANSWER-correlation does not mean causation
dirty data - ANSWER-data that is wrong or has mistakes in it
Distance is not directly related to similarity - ANSWER-What is one issue with map-
based graphical visualizations?
explain - ANSWER-which of these is not one of Few's 8 core principals of data
visualization?
be skeptical
explain
attend
simplify
FBI watchlists - ANSWER-Microsoft uses all of the following data to combat cyber crime
except:
early warning reports
fbi watchlists
threat reports
malicious files
Complete Solutions
-keep in mind what is interesting to the audience
-come up with the ending before figuring out the middle
-put it on paper
-find the essence of story and the simplest way to tell it
All are crucial in creating the most effective data visualization possible; allows creator to
stay organized and make sure that he and his audience understands the visualization -
ANSWER-What are the rules for storytelling?
1. my understanding of the (business) problem
2. How will I measure the (business) impact?
3. What's the available data?
4. The initial solution hypothesis
5. The solution
6. the (business) impact of the solution
need all of these steps in order to tell and complete whole story behind the visualization
- ANSWER-What are the steps for communicating an analysis (and what do they
mean)?
How do they relate to data visualizations?
1. what are your hypotheses?
2. What are your biases?
3. What is the sample (size)?
4. What is the data source?
5. How good are your (customer) measures? - ANSWER-What are Hayes' five
questions to prove a set of data is trustworthy?
33% - ANSWER-what percentage of business leaders do not trust the information they
use to make decisions?
80% of the time - ANSWER-How often was Stein able to eventually predict the gender
of a caller?
a title, description, and data type - ANSWER-What are the elements of data that are
metadata?
a value - ANSWER-what are the elements of data that are just simply the data?
Answering the questions "why" and "how" - ANSWER-According to Silver's article "What
the fox knows", the "explanation" step involves what?
, bar charts or pie charts - ANSWER-What types of charts lend themselves to categorical
values?
Both tell a story using data - ANSWER-What are the similarities between infographics
and data visualizations?
collection, organization, explanation, and generalization - ANSWER-what are the four
steps for turning data into information?
content
context
construction - ANSWER-what are the basic elements of data visualizations
Data - ANSWER-raw, unorganized facts
data always susceptible to human error
The signal problem - ANSWER-what are sources of bias in data?
data is unorganized while information is process/organized to be useful - ANSWER-
What is the difference between data and information?
Data Science - ANSWER-the study of the generalizable extraction of knowledge from
data
direction of causality - ANSWER-correlation does not mean causation
dirty data - ANSWER-data that is wrong or has mistakes in it
Distance is not directly related to similarity - ANSWER-What is one issue with map-
based graphical visualizations?
explain - ANSWER-which of these is not one of Few's 8 core principals of data
visualization?
be skeptical
explain
attend
simplify
FBI watchlists - ANSWER-Microsoft uses all of the following data to combat cyber crime
except:
early warning reports
fbi watchlists
threat reports
malicious files
