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A marketing company conducted a self-reported survey, on behalf of a client, of household income and other demographics in Middlesex county, New Jersey. For the income question, the survey form had the following options to choose from: $0-$10,000, 10,001-50,000, 50,001-75,000, and, 75,000+. Those surveyed were required to choose one of the four options for income. Which of these statements is true of the survey question for household income?
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