QMET 251 - Exam 1 Questions and Answers Already Passed Latest Update 2025-2026
The portion of the population that is selected for analysis is called - Answers a sample
A summary measure that is computed from only a sample of the population is called - Answers
a statistic
The height of an individual is an example of a - Answers continuous variable
The body style of an automobile (sedan, minivan, SUV, and so on) is an example of a - Answers
categorical variable
The number of credit cards in a person's wallet is an example of a - Answers discrete variable
Statistical inference occurs when you - Answers take the results of a sample and reach
conclusions about a population
The Human Resources director of a large corporation wants to develop a dental benefits
package and decides to select 100 employees from a list of all 5,000 workers in order to study
their preferences for the various components of a potential package. All the employees in the
corporation constitute the ______. - Answers population
The Human Resources director of a large corporation wants to develop a dental benefits
package and decides to select 100 employees from a list of all 5,000 workers in order to study
their preferences for the various components of a potential package. The 100 employees who
will participate in this study constitute the ______. - Answers sample
Those methods that involve collecting, presenting, and computing characteristics of a set data
in order to properly describe the various features of the data are called: - Answers descriptive
statistics
Based on the results of a poll of 500 registered voters, the conclusion that the Democratic
candidate for U.S. president will win the upcoming election is an example of: - Answers
inferential statistics
A numerical measure that is computed to describe a characteristic of an entire population is
called: - Answers a parameter
You were working on a project to examine the value of the American dollar as compared to the
English pound. You accessed an Internet site where you obtained this information for the past
50 years. Which method of data collection were you using? - Answers published sources
The number of teachers employed at your local elementary school is an example of a _________
variable. - Answers discrete
The temperature at which a hamburger is cooked at a brunch of a fast-food chain is an example
of a _____ variable. - Answers continuous
, The number of cell phones in a household is an example of: - Answers a discrete variable
T/F: The possible responses to the question, "How long have you been living at your current
residence?" are values from a continuous variable. - Answers true
T/F: The possible responses to the question, "How many times in the past seven days have you
streamed a movie or TV show online?" are values from a discrete variable. - Answers true
An insurance company evaluates many variables about a person before deciding on an
appropriate rate for automobile insurance. The number of accidents a person has had in the
past 3 years is an example of a _____ variable. - Answers discrete
The distance a person drives in a day is an example of a ________ variable. - Answers continuous
A persons martial status is an example of a ______ variable. - Answers categorical
A numerical measure that is computed from only a sample of the population is called a ______. -
Answers statistic
The portion of the population that is selected for analysis is called the ______. - Answers sample
A college admission application includes many variables. The number of advanced placement
courses the student has taken is an example of a _______ variable. - Answers discrete
A college admission application includes many variables. The gender of the student is an
example of a ______ variable. - Answers categorical
The distance from the student's home to the college is an example of a _______ variable. -
Answers continuous
Which of the following graphical presentations is NOT appropriate for categorical data?
a. Pareto chart
b. scatter plot
c. bar chart
d. pie chart - Answers scatter plot
Which of the following graphical presentations is NOT. appropriate for numerical data?
a. histogram
b. pie chart
c. time-series plot
d. scatter plot - Answers pie chart
The portion of the population that is selected for analysis is called - Answers a sample
A summary measure that is computed from only a sample of the population is called - Answers
a statistic
The height of an individual is an example of a - Answers continuous variable
The body style of an automobile (sedan, minivan, SUV, and so on) is an example of a - Answers
categorical variable
The number of credit cards in a person's wallet is an example of a - Answers discrete variable
Statistical inference occurs when you - Answers take the results of a sample and reach
conclusions about a population
The Human Resources director of a large corporation wants to develop a dental benefits
package and decides to select 100 employees from a list of all 5,000 workers in order to study
their preferences for the various components of a potential package. All the employees in the
corporation constitute the ______. - Answers population
The Human Resources director of a large corporation wants to develop a dental benefits
package and decides to select 100 employees from a list of all 5,000 workers in order to study
their preferences for the various components of a potential package. The 100 employees who
will participate in this study constitute the ______. - Answers sample
Those methods that involve collecting, presenting, and computing characteristics of a set data
in order to properly describe the various features of the data are called: - Answers descriptive
statistics
Based on the results of a poll of 500 registered voters, the conclusion that the Democratic
candidate for U.S. president will win the upcoming election is an example of: - Answers
inferential statistics
A numerical measure that is computed to describe a characteristic of an entire population is
called: - Answers a parameter
You were working on a project to examine the value of the American dollar as compared to the
English pound. You accessed an Internet site where you obtained this information for the past
50 years. Which method of data collection were you using? - Answers published sources
The number of teachers employed at your local elementary school is an example of a _________
variable. - Answers discrete
The temperature at which a hamburger is cooked at a brunch of a fast-food chain is an example
of a _____ variable. - Answers continuous
, The number of cell phones in a household is an example of: - Answers a discrete variable
T/F: The possible responses to the question, "How long have you been living at your current
residence?" are values from a continuous variable. - Answers true
T/F: The possible responses to the question, "How many times in the past seven days have you
streamed a movie or TV show online?" are values from a discrete variable. - Answers true
An insurance company evaluates many variables about a person before deciding on an
appropriate rate for automobile insurance. The number of accidents a person has had in the
past 3 years is an example of a _____ variable. - Answers discrete
The distance a person drives in a day is an example of a ________ variable. - Answers continuous
A persons martial status is an example of a ______ variable. - Answers categorical
A numerical measure that is computed from only a sample of the population is called a ______. -
Answers statistic
The portion of the population that is selected for analysis is called the ______. - Answers sample
A college admission application includes many variables. The number of advanced placement
courses the student has taken is an example of a _______ variable. - Answers discrete
A college admission application includes many variables. The gender of the student is an
example of a ______ variable. - Answers categorical
The distance from the student's home to the college is an example of a _______ variable. -
Answers continuous
Which of the following graphical presentations is NOT appropriate for categorical data?
a. Pareto chart
b. scatter plot
c. bar chart
d. pie chart - Answers scatter plot
Which of the following graphical presentations is NOT. appropriate for numerical data?
a. histogram
b. pie chart
c. time-series plot
d. scatter plot - Answers pie chart
