Data Presentation

Question 1

T/F

When data have been collected, they are of little use until they have been organized and represented in a form that helps us understand the information contained

Answer 1

T

Question 2

Data that are not yet manipulated or treated in any way beyond their original collection

Answer 2

RAW DATA

Question 3

not arranged or organized in any meaningful manner

Answer 3

RAW DATA

Question 4

Presentation of data

Answer 4

Textural
Tabular
Graphical

Question 5

Data are presented in paragraph form. It involves enumeration of important characteristics, giving emphasis on significant figures and identifying the
important features of the data

Answer 5

Textual

Question 6

The data are presented in tables to show the relation
between the column and row quantities

Answer 6

Tabular

Question 7

It is a table which shows the data arranged into different
classes and the number of cases which fall into each class is tallied.

Answer 7

Frequency Distribution Table

Question 8

Used for data that can be placed in specific categories, such as nominal or ordinal level data.

Answer 8

Categorical Frequency Distribution Table

Question 9

Example of Categorical Frequency Distribution Table

Answer 9

data such as political affiliation, religious affiliation or major field of study.

Question 10

In grouped frequency distribution, when the range of data is large, the data must be grouped into classes that are more than ___________ in width.

Answer 10

one unit

Question 11

Rules in constructing a grouped FDT
1. There should be between_______________.
2. It is preferable but not absolutely necessary that the class width be an ________ number.
3. The classes must be mutually__________.
4. The classes must be ________.
5. The classes must be ___________.
6. The classes must be______ in width.

One exception occurs when a distribution has a class that is _____________

Answer 11

1. 5 and 20 classes
2. odd
3. exclusive
4. continuous
5. exhaustive
6. equal

open-ended

Question 12

Sturge’s Formula

Answer 12

k= 1 + 3.322 x log(n)

Question 13

formula for class size

Answer 13

c=R/k

Question 14

refers to the frequency of the class as a fraction of the total
number of observations in the data set

Answer 14

Relative frequency

Question 15

refers to the total number of observations greater/less than or equal to the LL of the class

Answer 15

cumulative frequency

Question 16

total number of observations greater than or equal to the LL of the class

Answer 16

> CF

Question 17

the total number of
observations less than or equal to the UL of the class

Answer 17

<CF

Question 18

refers to the fraction of the total number of observations
greater/less than or equal to the LL of the class

Answer 18

Relative cumulative frequency

Question 19

Data are presented in visual form. It is a picture that displays numerical information.

Answer 19

Graphical

Question 20

Three most commonly used graphs in research

Answer 20

Histogram
Frequency polygon
Cumulative frequency graph or ogive

Question 21

Graph that displays the data by using contiguous vertical
bars (unless the frequency of a class is 0) of various heights
to represent the frequencies of the class

Answer 21

Histogram

Question 22

In histogram there is (1) _________ between bars. This is appropriate to use for (2) __________ variables.

Base: (3) ______
Height: (4) ________

Answer 22

1. no gap
2. continuous
3. TCB
4. Frequency

Question 23

Graph that displays the data by using lines that connect points plotted for the frequencies at the midpoints of the classes. The frequencies are represented by the heights of the points

Answer 23

Frequency polygon

Question 24

In frequency polygon additional X are added on both ends in order to (1) _________ the polygon. This is appropriate to use for (2) __________ variables.

Base: (3) ______
Height: (4) ________

Answer 24

1. close
2. continuous
3. class mark
4. Frequency

Question 25

A Cumulative frequency graph that represents the cumulative frequencies for the classes in frequency distribution

Answer 25

OGIVE

Question 26

In <Ogive, there is additional (1) _________ with <cf equal to 0.
Base: (2) ______
Height: (3) ________

Answer 26

1. upper cb
2. upper class boundary
3. <cf

Question 27

In >Ogive, there is additional (1) _________ with >cf equal to 0.
Base: (2) ______
Height: (3) ________

Answer 27

1. LOWER cb
2. lower class boundary
3. > cf

Question 28

Stem-and-Leaf Plot is also called as

Answer 28

stemplot

Question 29

Hybrid of table and graph. Shows actual data values as well as the distribution of the
data. Appropriate only for small data set with positive values with atleast two digits

Answer 29

Stemplot