Data Visualization

Question 1

Methods of Data Presentation

Answer 1

Narrative, Tabular, Graphical

Question 2

o data is presented in narrative form’
o typically used for small data sets and limited summaries
o interpret or translate the data into text

Answer 2

narrative

Question 3

other term for narrative

Answer 3

o also called Textual

Question 4

Graphical is also know as

Answer 4

also known as Pictorial Representations of Numerical Data

Question 5

preferable to deliver a specific message than to present data in a table

Answer 5

Graphical

Question 6

can show trends or patterns in a large data set

Answer 6

Graphical

Question 7

Pointers in Creating a Graphical Presentation

Answer 7

Self-explanatory
▪ Scales should be properly labeled
▪ Trend lines should be properly identified through
labels or legends
▪ Grids may be used as a guide
▪ Should be devoid of unnecessary trimmings and
draftsmanship
▪ Scales should start with zero
▪ Use colors for emphasis or differentiation
▪ On an arithmetic scale, equal distances between
tick marks an axis should represents equal
numerical units

Question 8

o simplest method of data presentation
o can be used for all numerical data
o can present trends, comparisons, and
interrelationships among different variables

Answer 8

Tabular

Question 9

A table should be

Answer 9

simple, direct, and clear

Question 10

Parts of a Table

Answer 10

Table number, Title, Captions, Stubs, Source note, Footnote

Question 11

A table number should be

Answer 11

o numbered consecutively

Question 12

A title should be

Answer 12

able to give complete information – who, what, where

Question 13

indicates the basis of classification (Vertical)

Answer 13

Column Headings/ captions

Question 14

o indicates the basis of classification
(Horizontal)

Answer 14

Row Headings (stubs)

Question 15

intersection of a Row and a Column

Answer 15

Body

Question 16

should be placed immediately below the bottom rule of the table

Answer 16

Footnote

Question 17

when the data presented is not original, it is obligatory to specify the source

Answer 17

Source of data

Question 18

Pointers in Creating a Table

Answer 18

▪ Positioning
o place it immediately after the text where it is cited
▪ Uniformity
o should be standard
▪ Number of Variables
o should be limited
▪ Self-explanatory
o readers should be able to understand the context without referring to the explanation
▪ Ruling
o separation of rows and column within the table

Question 19

Different Types of Graphs

Answer 19

Bar chart, Histogram, Box plot, 2-way scatter plot, line graph, frequency polygon

Question 20

o a popular type of graph to present a frequency distribution for nominal or ordinal data
o useful for comparing data between different classifications or categories

Answer 20

Bar Chart/Graph

Question 21

commonly used type of graph to portray frequency distribution for discrete or continuous data

determine the scales
of axes; vertical scale should always begin in ZERO; if not, the comparison among intervals
may be distorted

Answer 21

Histogram

Question 22

o similar to histogram
o placing a point at the CENTER of each interval
o points are connected by a STRAIGHT LINE

Answer 22

Frequency Polygon

Question 23

o commonly used type of graph to portray
frequency distribution for a discrete or
continuous data
o uses a SINGLE AXIS to display selected summaries of measurements

Answer 23

box plot

Question 24

used to portray the relationship between two different continuous data

Answer 24

Two-way Scatter Plots

Question 25

o each point on the graph represents a pair of
value
o scales are positioned in horizontal and vertical axis

Answer 25

Two-way Scatter Plots

Question 26

o used to illustrate the relationship between continuous quantities
o points in horizontal axis have a single corresponding measurement on the vertical
axis

ADJACENT points are connected by a STRAIGHT line

o intended to portray trends

Answer 26

line graph

Question 27

in a line graph horizontal axis represents

Answer 27

time

Question 28

▪ display the data into groups
▪ shows how many data occur in each group
▪ used to group a large data set
▪ variables (data) summarized into tables

Answer 28

frequency distribution

Question 29

shows connections and correlations between
variables

give example

Answer 29

Relationship

o ex. Scatter Plot, Line Chart

Question 30

o to demonstrate the parts that make up a
whole

give example

Answer 30

▪ Composition

o ex. Pie Chart

Question 31

to emphasize differences between data
points or groups

give example

Answer 31

Comparison

o ex. Bar Chart, Line Char

Question 31

o to illustrate the spread and frequency of data
points within a data set

Answer 31

▪ Distribution

ex. Histogram, Box Plot