General Mathematics · Unit 2 · Univariate data analysis 1 · Making sense of data relating to a single statistical variable

Classify a statistical variable as categorical or numerical.

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Question 1

A researcher surveys 180 patients at a medical clinic. For each patient, the following information is recorded: age in years, blood type, number of doctor visits in the past year, and eye colour. Which statement correctly identifies the variables in this survey?

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