M3

Question 1

Information obtained by observing values of a variable is called

Answer 1

raw data.

Question 2

Data obtained by observing values of a qualitative variable are
referred to as

Answer 2

qualitative data.

Question 3

Data obtained by observing values of a quantitative variable are
referred to as

Answer 3

quantitative data.

Question 4

Quantitative data obtained from a discrete variable are also

referred to as

Answer 4

discrete data

Question 5

quantitative data obtained

from a continuous variable are called

Answer 5

continuous data.

Question 6

Data can be classified as

Answer 6

grouped or ungrouped data.

Question 7

are data that are not organized, or if arranged,

could only be from highest to lowest or lowest to highest.

Answer 7

Ungrouped data

Question 8

are data that are organized and arranged into

different classes or categories.

Answer 8

Grouped data

Question 9

can be presented in textual form, as in

paragraph form.

Answer 9

Ungrouped data

Question 10

This involves enumerating the important
characteristics, giving emphasis on significant figures and
identifying important features of the data.

Answer 10

textual form

Question 11

tables. By organizing the data in
X, important features about the data can be readily understood and
comparisons are easily made

Answer 11

tables

Question 12

consists of the table number and the title

Answer 12

Table Heading :

Question 13

It describes the data in each column.

Answer 13

Column Header :

Question 14

It shows the classes or categories.

Answer 14

Row Classifier :

Question 15

This is the main part of the table.

Answer 15

Body :

Question 16

This is placed below the table when the data written

are not original

Answer 16

Source Note :

Question 17

The most commonly used method in presenting data by tabular method is
by constructing a X

Answer 17

Frequency Distribution Table.

Question 18

is the organization of raw data in table

form, using classes and frequencies.

Answer 18

frequency distribution

Question 19

Frequency Distribution Table (FDT) is a statistical table
showing the frequency or number of observations contained in
each of the defined X

Answer 19

classes or categories.

Question 20

frequency distribution for qualitative data X all
categories and the number of elements that belong to
each of the categories

Answer 20

lists

Question 21

The X of a category is obtained by dividing the
frequency(𝑓) for a category by the sum of all the frequencies(𝑛). They
are commonly expressed as percentages

Answer 21

relative frequency

Question 22

frequency distribution for X, the data are grouped according to some numerical characteristics

Answer 22

quantitative

distributions

Question 23

endpoints of a class interval

Answer 23

Class Limits –

Question 24

represents the largest data value that can be

included in the class.

Answer 24

. Upper Class Limit -

Question 25

represents the largest data value that can be | included in the class

Answer 25

Lower Class Limit -

Question 26

used to separate the classes so that there are no gaps in the frequency distribution. The gaps are due to the limits; for example, there is a gap between 30 and 31.

Answer 26

Class boundaries -

Question 27

lower boundary formula

Answer 27

Lower boundary = Lower Limit – 0.5

Question 28

Upper boundary formula

Answer 28

Upper boundary = Upper limit + 0.5

Question 29

the difference between the boundaries for any class., i.e. | i=upper boundary – lower boundary or i=(upper limit-lower limit) +1

Answer 29

. Class width (i)-

Question 30

the midpoint of the class

Answer 30

Class mark -

Question 31

``` total number of observations less than the upper boundary of a class interval ```

Answer 31

• less than cumulative frequency (

Question 32

``` total number of observations greater than the lower boundary of a class interval ```

Answer 32

greater than cumulative frequency (>cf) –

Question 33

The purpose of X in | statistics is to convey the data to the viewers in pictorial form

Answer 33

graphs

Question 34

is a graph composed of bars whose heights are the | frequencies of the different categories.

Answer 34

A bar graph

Question 35

displays graphically the same information concerning qualitative data that a frequency distribution shows in tabular form.

Answer 35

bar graph

Question 36

is also used to graphically display qualitative | data.

Answer 36

pie chart

Question 37

a circle is divided into portions that represent the relative frequencies or percentages belonging to different categories.

Answer 37

pie chart

Question 38

the categories are placed along the horizontal axis and frequencies are marked along the vertical axis

Answer 38

bar graph

Question 39

``` is a 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 classes. ```

Answer 39

histogram

Question 40

is a graph that displays the data by using lines that connect points plotted for the frequencies at the midpoints of the classes

Answer 40

frequency polygon

Question 41

The frequencies in a frequency polygon are represented by the

Answer 41

heights of the points

Question 42

is a graph that represents the cumulative | frequencies for the classes in a frequency distribution.

Answer 42

ogive

Question 43

``` is a graph in which a point is plotted above each class boundary at a height equal to the cumulative frequency corresponding to that boundary. ```

Answer 43

ogive

Question 44

birth order

Answer 44

ordinal

Question 45

registration number

Answer 45

nominal

Question 46

skin complexion

Answer 46

nominal

Question 47

number of siblings

Answer 47

ratio

Question 48

gender

Answer 48

nominal

Question 49

every seventh customer entering a shopping mall is asked to select his or her favorite store

Answer 49

systematic

Question 50

nursing supervisors are selected using random numbers to determine annual salaries

Answer 50

simple random

Question 51

relative frequency counts the number of observations that are ordered less than the particular class

Answer 51

false

Question 52

the frequency of a category is defined as the number of observations in a data set falling under a category

Answer 52

true

Question 53

class limits and class boundaries are the same

Answer 53

true

Question 54

gathered data should be presented organized, precise, and convenient

Answer 54

false

Question 55

the endpoints of a class interval are called class boundaries

Answer 55

false (class limits)

Question 56

IQ score

Answer 56

interval*

Question 57

grade-level/year-level

Answer 57

?*

Question 58

blood sugar level

Answer 58

interval

Question 59

every 50th bottle of soda in a manufacturing line is checked to determine the amount of soda dispensed by the manufacturer

Answer 59

systematic

Question 60

in a large company, three departments are selected for a physical fitness test

Answer 60

clustered*

Question 61

it is important to keep the width of each class the same in a frequency distribution

Answer 61

true

Question 62

it is impossible to construct a frequency distribution for nominal data

Answer 62

true*

Question 63

in constructing a frequency distribution table, the classes must be mutually exclusive

Answer 63

true

Question 64

class limits are useful in tabulating continuous data

Answer 64

true

Question 65

Volume (in cu. cm)

Answer 65

I

Question 66

religious affiliation

Answer 66

N

Question 67

Blood Type

Answer 67

N

Question 68

Land area (in hectares)

Answer 68

R

Question 69

MAil carriers of a large city are divided into four groups according to gender and according to whether they walk or ride on their routes. Then 10 are selected from each group and interviewed to determine whether they have been bitten by a dog in the last year.

Answer 69

Stratified

Question 70

Nursing supervisors are selected using random numbers to determine annual salaries

Answer 70

simple random

Question 71

The frequency distribution table is the most used tabular presentation of data

Answer 71

true

Question 72

Frequency Distribution Table can be constructed for sets of Nominal data

Answer 72

true

Question 73

class limits are used in tabulating continuous data

Answer 73

true