7 min read
This study guide covers bivariate data analysis, focusing on scatterplots. It explains explanatory and response variables, how to create and interpret scatterplots, and the four key elements of describing them: form, direction, strength, and unusual features (outliers, clusters). It also distinguishes between outliers, influential points, and high leverage points, and provides practice questions and exam tips.
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Question 1 of 12
In a study examining the effect of hours of sleep on test scores, which variable is the explanatory variable? 😴
Test scores
Hours of sleep
Both are explanatory variables
Neither are explanatory variables