The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a blu-ray player made by the company over the past 12 months are satisfied with their products. the possible responses to the question "what is your annual income rounded to the nearest thousands? " will result in a/an scale variable.
a. nominal.
b. ordinal.
c. ratio.
d. interval.

The answer is: C) ratio

Explanation:

A ratio variable has order and the difference between values is meaningful. Ratio variables include a clear definition of 0. For example, if you ask someone about the temperature, if he answers with "its 45°" it is a ratio variable, but if he says "it's cold" it would be an ordinal variable.

When customers are surveyed about their income level, they are giving a ratio variable, e.g. $100,000 per year. If they would answer "high income" then it would be an ordinal variable.

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