Classify each of the following as nominal, ordinal, interval, or ratio data.

a. The ranking of a company by Report on Business magazine’s Top 1000

b. The number of tickets sold at a movie theatre on any given night

c. The identification number on a questionnaire

d. Per capita income

e. The trade balance in dollars

f. Profit/loss in dollars

g. A company’s tax identification number

h. The Standard & Poor’s bond ratings of cities based on the following scales:

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Rating Highest quality High quality Upper medium quality Medium quality Somewhat speculative Low quality, speculative Low grade, default possible Low grade, partial recovery possible Default, recovery unlikely Grade AAA AA A BBB BB B CCC CC C