Statistics and Analytics - Chapter 01

Which of the following is a continuous variable?

The temperature at which a hamburger is cooked at a branch of a fast-food chain

Which of the following is a discrete variable?

The time it takes for a certain student to walk to your local elementary school

The possible responses to the question, "How long have you been living at your current residence?" are values from a continuous variable.

True

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.

True

The number of cell phones in a household is an example of:

a discrete variable

A numerical measure that is computed to describe a characteristic of an entire population is called:

a parameter

The portion of the population that is selected for analysis is called:

a sample

A summary measure that is computed from only a sample of the population is called:A summary measure that is computed from only a sample of the population is called:

a statistic

A college admission application includes many variables. The gender of the student is an example of a ______ variable.

categorical

An insurance company evaluates many variables about a person before deciding on an appropriate rate for automobile insurance. A person's marital status is an example of a _______ variable.

categorical

The body style of an automobile (sedan, minivan, SUV, and so on) is an example of a:

categorical variable

A college admission application includes many variables. The distance from the student's home to the college is an example of a ______ variable.

continuous

An insurance company evaluates many variables about a person before deciding on an appropriate rate for automobile insurance. The distance a person drives in a day is an example of a _______ variable.

continuous

The height of an individual is an example of a:

continuous variable

Those methods that involve collecting, presenting, and computing characteristics of a set of data in order to properly describe the various features of the data are called:

descriptive statistics

A college admission application includes many variables. The number of advanced placement courses the student has taken is an example of a ______ variable.

discrete

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 three years is an example of a _______ variable.

discrete

The number of credit cards in a person's wallet is an example of a:

discrete variable

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:

inferential statistics

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 _______.

population

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?

published sources

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 _______.

sample

The portion of the population that is selected for analysis is called the ______.

sample

A numerical measure that is computed from only a sample of the population is called a ______.

statistic

Statistical inference occurs when you:

take the results of a sample and reach conclusions about a population