Question 1
Which of the following scenarios describes a bivariate dataset?
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General Mathematics · Unit 3 · Bivariate data analysis 1 · Identifying and describing associations between two categorical variables
Understand the meaning of bivariate data.
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Question 2
A marine biologist records the water temperature (°C) and the number of whale sightings per day at a coastal observation station over a 10-day period. The data is shown in the table below. Determine whether water temperature and whale sightings represent bivariate data, identify the type of each variable, classify the association shown in the data, and calculate the percentage of days when water temperature was below 16°C and whale sightings exceeded 8.
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More in Identifying and describing associations between two categorical variables
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Understand an association in terms of differences observed in percentages across categories in a systematic and concise manner, and interpret this in the context of the data.
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Use an appropriately percentaged two-way frequency table to identify patterns that suggest the presence of an association.