Class Four: Visualizations

Question 1

Exploratory analysis:

Answer 1

involves digging through your data to find relationships
and trends without a specific goal in mind

Question 2

Explanatory analysis:

Answer 2

involves explaining the outcomes or relationships you may
have found during your exploratory phase

Question 3

Exploratory: Try different variables and look for patterns (find associations between
states, sales personnel, sale orders, etc., over the 20-year period). For instance, you
find that certain states have higher than normal sales orders

Answer 3

‒ Explanatory: Explain the patterns discovered. For instance, you could show that the
states with the highest sales orders have the highest population, or that the states
with the highest sales orders have the most experienced sales personnel

Question 4

Text table should be

Answer 4

USED IN APPENDICES ONLY

Question 5

pie chart

Answer 5

Pie charts are best suited to show proportional or percentage relationships

Use very selectively
‒ Can become cumbersome
when wedges (or slices) are
similar in size or when there are many of them

Question 6

histogram

Answer 6

histogram is a bar graph-
like representation of data
that plots the frequency of
measure values into bins
(i.e., columns along the x-
axis  it shows how data is
clustered or distributed)
‒ It is used to show
frequency distributions

Question 7

histogram steps

Answer 7

1. Bin in the columns, value in rows * COUNT Aggregate
2. Edit the bin size
3. filter
4. y-axis is COUNT OF ..
5. ____ Distribution

Question 8

Box and Whisker Plot

Answer 8

The box represents the values between the first and the third quartile known as
the interquartile range. While the whiskers represent the distances between the
lowest value to the first quartile and the fourth quartile to the highest value.

Question 9

side by side circle chart

Answer 9

The side-by-side circle allows
you to add more measures to
be compared next to each
other for a richer analysis

Question 10

bubble chart

Answer 10

the bubble chart shows relational value without regards to axes
‒ The key to making pack bubbles chart useful is having
the right fields in the right places on the marks card,
specifically on the color, size, and detail shel

Question 11

line graph

Answer 11

Two options for line charts:

‒ Lines that are continuous:
continuous fields can have an
infinite number of values, such
as temperature or thermometer
 colored green in Tableau
 Ideal to illustrate trends over time

Question 12

Line Graph

Answer 12

‒ Lines that are continuous:
continuous fields can have an
infinite number of values, such
as temperature or thermometer
 colored green in Tableau

‒ Lines that are discrete: discrete
fields contain a finite number of
values, such as the number of
students in a classroom
 colored blue in Tableau
 Ideal to illustrate trends over time