1
Q
When to use line charts
A
j
2
Q
When to use bar charts
A
a
3
Q
When to use scatter plots
A
4
Q
When to use bubble plot
A
s
5
Q
What is Data visualization, and why?
A
Data visualization (“data viz”) involves (the study of) tools and techniques for turning data into images/graphics - to obtain BETTER INSIGHT into the data.
In other words, this is about graphical depictions of data. Why do it? To understand, communicate, act/decide/utilize.
6
Q
A
7
Q
When you should use a histogram
A
8
Q
Histogram examples
A
- frequency distribution for time to response for tickets sent into a fictional support system
- US population by age
9
Q
Bubble plot examples
A
- State gdp in the USA map
- Risk assesment for opportunities. X investment, Y revenue, Bubble probability of success
