One of the variables most often included in surveys is income. Sometimes the question is phrased “What is your income (in thousands of dollars)?” In other surveys, the respondent is asked to “Select the circle corresponding to your income level” and is given a number of income ranges to choose from.
a.In the first format, explain why income might be considered either discrete or continuous.
b. Which of these two formats would you prefer to use if you were conducting a survey? Why?
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