Univariate versus Bivariate Data
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Univariate Data Analysis
The heights of 500 students.
Bivariate Data Analysis
The heights and armspans of 500 students.
What does this look like? - Describing the data:
Mean, median, mode
Interquartile range, standard deviation
What does this look like? - Describing the relationship:
What model best describes the relationship - linear, polynomial, exponential?
How accurate/strong is this model? - Correlation coefficient