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

Classify a numerical variable as discrete or continuous, e.g. discrete: the number of people in a room; continuous: the temperature in degrees Celsius.

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Question 1

A researcher is investigating shopping patterns at a supermarket. Which of the following variables is continuous?

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Classify a categorical variable as ordinal or nominal and use tables and pie, bar and column charts to organise and display the data, e.g. ordinal: income level (high, medium, low); nominal: place of birth (Australia, overseas).
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Classify a statistical variable as categorical or numerical.
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