QMB 3200 REVISION EXAM
QUESTIONS WITH ANSWERS
What is considered to be the language of data?
statistics
What are the two main branches of statistics?
descriptive statistics and inferential statistics
What is descriptive statistics?
the summary of a data set in the form of tables, graphs, or the
calculation of numerical values
What is inferential statistics?
extracting useful information from a sample to draw
conclusions about a population
What is data?
the numbers, facts, and figures that are collected, analyzed, and
summarized for presentation and interpretation; not all data
start as numbers, but they can be converted to numbers
What are elements?
the entities on which data are collected
What are variables?
characteristics of interest
,What are observations?
measurements collected on each variable of the element
How do you find the total number of data values in a complete
data set?
(# of elements)(# of variables)
What are the two types of data?
categorical and quantitative
What type of data can be either numeric or non-numeric?
Categorical
What type of data can only be numerical?
Quantitative
What are the two scales of measurement for numeric
categorical data?
nominal and ordinal
What are the two scales of measurement for non-numeric
categorical data?
nominal and ordinal
What are the two scales of measurement for numeric
quantitative data?
interval and ratio
What is categorical data?
, data that are grouped by categories; can be either numeric or
non-numeric
What is another term for categorical data?
qualitative data
What is quantitative data?
data with numerical values
In order of the one that gives the least amount of information
to the one that gives the most, what are the four scales of
measurement?
nominal, ordinal, interval, and ratio
What is nominal data?
data that are labels or names; no intrinsic order; can be
numeric or non-numeric
Give an example of nominal data.
-type of housing you live in (e.g. single family, apartment,
condo)
-what state you live in
-brand name (e.g. car - ford, chevy)
What is ordinal data?
nominal in nature but has an order; can be numeric or non-
numeric
Give an example of ordinal data.
QUESTIONS WITH ANSWERS
What is considered to be the language of data?
statistics
What are the two main branches of statistics?
descriptive statistics and inferential statistics
What is descriptive statistics?
the summary of a data set in the form of tables, graphs, or the
calculation of numerical values
What is inferential statistics?
extracting useful information from a sample to draw
conclusions about a population
What is data?
the numbers, facts, and figures that are collected, analyzed, and
summarized for presentation and interpretation; not all data
start as numbers, but they can be converted to numbers
What are elements?
the entities on which data are collected
What are variables?
characteristics of interest
,What are observations?
measurements collected on each variable of the element
How do you find the total number of data values in a complete
data set?
(# of elements)(# of variables)
What are the two types of data?
categorical and quantitative
What type of data can be either numeric or non-numeric?
Categorical
What type of data can only be numerical?
Quantitative
What are the two scales of measurement for numeric
categorical data?
nominal and ordinal
What are the two scales of measurement for non-numeric
categorical data?
nominal and ordinal
What are the two scales of measurement for numeric
quantitative data?
interval and ratio
What is categorical data?
, data that are grouped by categories; can be either numeric or
non-numeric
What is another term for categorical data?
qualitative data
What is quantitative data?
data with numerical values
In order of the one that gives the least amount of information
to the one that gives the most, what are the four scales of
measurement?
nominal, ordinal, interval, and ratio
What is nominal data?
data that are labels or names; no intrinsic order; can be
numeric or non-numeric
Give an example of nominal data.
-type of housing you live in (e.g. single family, apartment,
condo)
-what state you live in
-brand name (e.g. car - ford, chevy)
What is ordinal data?
nominal in nature but has an order; can be numeric or non-
numeric
Give an example of ordinal data.
