STATISTICS FOR PEOPLE WHO THINK THEY
HATE STATISTICS SALKIND FREY
COMPREHENSIVE STUDY QUESTIONS AND
ANSWERS
◉ Match each word or phrase.
Answer: Provide numerical measures of individuals. The measures
can be added or subtracted, and provide meaningful results.
Quantitative Variable
Allow for classification of individuals based on some attribute or
characteristic.
Qualitative Variable
The characteristics of the individuals within the population.
Variable
Information that describes characteristics of an individual.
Data
,Has either a finite number of possible values or countable number of
possible values. The values of these variables typically result from
counting.
Discrete Variable
Has an infinite number of possible values that are not countable. The
values of these variables typically result from measurement.
Continuous Variable
◉ Number of pets.
Answer: Is the variable qualitative or quantitative?
The variable is
quantitative because it is
a numerical measure.
◉ Time to swim 100 meters.
Answer: Is the variable qualitative or quantitative?
The variable is
quantitative
because it is
,a
numerical
measure.
◉ Number of beats in a song.
Answer: Is the variable qualitative or quantitative?
The variable is
discrete
because it
is
countable.
◉ Distance between sides of a street.
Answer: Is the variable qualitative or quantitative?
The variable is
continuous
because it
is not
countable.
, ◉ The rankings of songs in the top 100.
Answer: ordinal
◉ Dress color.
Answer: nominal
◉ Ages of children.
Answer: Ratio
◉ The data on the right relate to characteristics of high-definition
televisions A through E. Identify the individuals, variables, and data
corresponding to the variables. Determine whether each variable is
qualitative, continuous, or discrete..
Answer: What are the individuals being studied?
(A) The high-definition television setups A through E.
What are the variables and their corresponding data being studied?
(A) Size (42, 54, 40, 40, 44), screen type
(Projection, Plasma, Plasma, Projection, Plasma),
and number of channels available
(300, 107, 423, 270, 290)
HATE STATISTICS SALKIND FREY
COMPREHENSIVE STUDY QUESTIONS AND
ANSWERS
◉ Match each word or phrase.
Answer: Provide numerical measures of individuals. The measures
can be added or subtracted, and provide meaningful results.
Quantitative Variable
Allow for classification of individuals based on some attribute or
characteristic.
Qualitative Variable
The characteristics of the individuals within the population.
Variable
Information that describes characteristics of an individual.
Data
,Has either a finite number of possible values or countable number of
possible values. The values of these variables typically result from
counting.
Discrete Variable
Has an infinite number of possible values that are not countable. The
values of these variables typically result from measurement.
Continuous Variable
◉ Number of pets.
Answer: Is the variable qualitative or quantitative?
The variable is
quantitative because it is
a numerical measure.
◉ Time to swim 100 meters.
Answer: Is the variable qualitative or quantitative?
The variable is
quantitative
because it is
,a
numerical
measure.
◉ Number of beats in a song.
Answer: Is the variable qualitative or quantitative?
The variable is
discrete
because it
is
countable.
◉ Distance between sides of a street.
Answer: Is the variable qualitative or quantitative?
The variable is
continuous
because it
is not
countable.
, ◉ The rankings of songs in the top 100.
Answer: ordinal
◉ Dress color.
Answer: nominal
◉ Ages of children.
Answer: Ratio
◉ The data on the right relate to characteristics of high-definition
televisions A through E. Identify the individuals, variables, and data
corresponding to the variables. Determine whether each variable is
qualitative, continuous, or discrete..
Answer: What are the individuals being studied?
(A) The high-definition television setups A through E.
What are the variables and their corresponding data being studied?
(A) Size (42, 54, 40, 40, 44), screen type
(Projection, Plasma, Plasma, Projection, Plasma),
and number of channels available
(300, 107, 423, 270, 290)
