When the data are labels or names used to identify an attribute of the elements, the variable has which scale of measurement?

When the data have the properties of ordinal data and the interval between observations is expressed in terms of a fixed unit of measure, the variable has which scale of measurement?

When the data have the properties of interval data and the ratio of two values is meaningful, the variable has which scale of measurement?

Which scale of measurement can be either numeric or nonnumeric?

Categorical data

Ordinary arithmetic operations are meaningful

In a questionnaire, respondents are asked to record their age in years. Age is an example of a

A Scanner Data User Survey of 50 companies found that the average amount spent on scanner data per category of consumer goods was $387,325 (Mercer Management Consulting, Inc., April 24, 1997). The $387,325 is an example of

In a sample of 800 students in a university, 160, or 20%, are Business majors. Based on the above information, the school's paper reported that "20% of all the students at the university are Business majors." This report is an example of

The owner of a factory regularly requests a graphical summary of all employees' salaries. The graphical summary of salaries is an example of

Exhibit 1-2
In a sample of 3,200 registered voters, 1,440, or 45%, approve of the way the President is doing his job.

Refer to Exhibit 1-2. A political pollster states, "Forty five percent of all voters approve of the President." This statement is an example of