Levels of Measurement

nominal

Hair color on a high school tennis team.

nominal

List of zip codes for Chicago

ratio

age of students in a statistic class

nominal

list of 1239 social security numbers

nominal

marriage status (married, single, or divorced) of the faculty at the University of Colorado.

ratio

number of milligrams of tar in 85 cigarettes

ratio

number of pages in your statistics book.

nominal

numbers on the shirts of a girl's soccer team.

interval

temperatures of 73 selected refrigerators.

ratio

the amounts of fat (in grams) in 29 cookies.

ratio

the annual salaries for all teachers in California.

ordinal

the final grades (A, B, C, D, and F) for students in a statistics class.

nominal

the nationalities listed in a recent survey (for example, Asian, European, or Hispanic).

ordinal

the ratings of a movie ranging from "poor" to "good" to "excellent"

interval

the years the summer Olympics were held in the United States.