Bivariate data involves two different variables that are analyzed to determine the empirical relationship between them. This type of data is often depicted using scatter plots or correlation coefficients.
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Bivariate data helps in understanding the relationship between two quantitative variables, such as stock price and trading volume.
Scatter plots are commonly used to visualize bivariate data.
The correlation coefficient (r) quantifies the strength and direction of the linear relationship between two variables.
In finance, bivariate analysis can be used to study the relationship between interest rates and bond prices.
A positive correlation indicates that both variables move in the same direction, while a negative correlation indicates they move in opposite directions.
Review Questions
What type of plot is typically used to visualize bivariate data?
How is the strength and direction of a linear relationship between two variables measured?
Give an example of how bivariate data can be used in financial analysis.