Exam 1: What Is Statistics

The performance of personal and business investments is measured as a percentage called "return on investment." What type of variable is "return on investment"?

To infer something about a population,we usually take a sample from the population.

The final rankings of the top 20 NCAA college basketball teams are an example of which level of measurement?

A group of women tried five brands of fingernail polish and ranked them according to preference. What level of measurement is this?

The Union of Electrical Workers of America with 9,128 members polled 362 members about a new wage package that will be submitted to management. The population is the 362 members.

Income is a variable often used in business and economics. Income is an example of a variable that uses the

A listing of 100 family annual incomes is an example of statistics.

A bank asks customers to evaluate its drive-through service as good,average,or poor. Which level of measurement is this classification?

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

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

If we select 100 persons from 25,000 registered voters and question them about candidates and issues,the 100 persons are referred to as the population.

Statistics is used to report the summary results of market surveys.

A sample is a portion or part of the population of interest.

What level of measurement is the Centigrade temperature scale?

The length of a bridge,measured in meters,is an example of

Which word is NOT part of the definition of descriptive statistics?

Which one of the following is NOT an example of discrete data?

A portion or part of a population is called a

The Nielsen Ratings break down the number of people watching a particular television show by age. What level of measurement is age?