Exam 1: What Is Statistics

Among the many classes held at your college or university, your statistics class has been selected for a study. This one class is referred to as a ____________.

The science of collecting, organizing, presenting, analyzing, and interpreting of data is called __________________.

Categorizing students as freshmen, sophomores, juniors and seniors is an example of the ______________ level of measurement.

The average number of passengers on commercial flights between Chicago and New York City is an example of a statistic.

A New York newspaper reported the average gasoline prices in four metropolitan areas and used a bar chart to illustrate the differences. What type of statistics was shown? What activities did the newspaper use to make the report?

The reported unemployment is 5.5% of the population. What measurement scale is used to measure unemployment?

Statistics are used as a basis for making decisions.

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Label each variable as qualitative or quantitative, discrete or continuous, and nominal, ordinal, interval, or ratio.

The branch of statistics that does not involve generalizations is called _______________.

If Gallup, Harris and other pollsters asked people to indicate their political party affiliation as Democrat, Republican or Independent, the data gathered would be an example of which scale of measurement?

The Equal Employment Opportunity Act requires employers to classify their employees by gender and national origin. Which level of measurement is this?

What type of variable is "pounds of popcorn" served at a movie theater?

Describe the difference between a population and a sample.

The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called

If we test a small number of light bulbs from a large group, the small group is called a ____________.

There are four levels of measurement-qualitative, quantitative, discrete, and continuous.

A scale used to measure a quantitative variable is either _______________ or ______________.

The "highest" level of measurement is ______________.

What level of measurement is the prime rate of interest? ______________