[LEC2] Data Visualization

Question 1

Methods of Data presentation

Answer 1

Narrative, Tabular & Graphical

Question 2

The data is presented in anrrative form. This is typically used for small data sets and limited summaries.

Answer 2

Narrative or Textual

Question 3

Interpreting the data whther in table or in chart or graphs and translate into text.

Answer 3

Narrative

Question 4

• The simplest method of data presentation
• Can be e used for all numerical data
• It can present trends, comparisons, and interrelationships among different variables.
• A table should be simple, direct and clear.

Answer 4

Tabular

Question 5

Numbered consecutively

Answer 5

Table Number

Question 6

• Able to give complete information
• (Who, What, When, Where (4W))
• Clear yet simple

Answer 6

Title

Question 7

Indicates the basis of classification (Vertical)

Answer 7

Column Headings

Question 8

Indicates the basis of classification (Horizontal)

Answer 8

Row Classifier

Question 9

Intersection of a row and column

Answer 9

Body

Question 10

Should be placed immediately below the button rule of the table

Answer 10

Footnotes

Question 11

• When the data presented is not original, it is obligatory to specify the source.
• bottom of the table

Answer 11

Source of Data / Source Note

Question 12

If we fail state our source then its _________

Answer 12

plagiarism

Question 13

Place it immeditely after the text where it is cited

Answer 13

Positioning

Question 14

When creating a table it should be ______, _______ and ______

Answer 14

simple, direct and clear

Question 15

It should be standard

Answer 15

Uniformity

Question 16

Should be limited

Answer 16

Number of Variables

Question 17

readers should be able to understand the context without referring to the explanation

Answer 17

Self-Explanatory

Question 18

Separation of rows and columns within the table

Answer 18

Ruling

Question 19

Also known as pictorial representations of numerical data.
- It is preferable to deliver a specific message that to present data in a table
- Can show trends or patterns in a large data set

Answer 19

Graphical

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

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

o in creating a histogram, determine the scales of axes; vertical scale should always begin in zero; if not, the comparison among intervals may be distorted

Answer 21

Histograms

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 Plots

Question 24

o used to portray the relationship between two different continuous data
o each point on the graph represents a pair of value
o scales are positioned in horizontal and vertical axis

Answer 24

Two-way Scatter Plots

Question 25

o used to illustrate the relationship between continuous quantities
o points in horizontal axis have a single corresponding measurement on the vertical axis
o adjacent points are connected by a straight line
o in the horizontal axis, mostly represents time
o intended to portray trends

Answer 25

Line Graph

Question 26

▪ 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 26

Frequency Distribution

Question 27

Categories of Data Visualization

Answer 27

▪ Relationship
▪ Composition
▪ Distribution
▪ Comparison