AP Statistics / Unit 5: Regression Analysis
5.1 Graphical Representations Between Two Quantitative Variables
Notes
A scatterplot shows two quantitative variables: the explanatory variable on $x$, the response on $y$.
- Describe direction, form, strength and unusual features, in context.
Practice
Hours studied and test score: the explanatory variable is:
It explains the response.
Points slope up from left to right. The direction is:
$y$ tends to increase with $x$.
Which is NOT part of describing a scatterplot?
Use direction, form, strength, unusual features.
Ready for more? Take the Unit 5 test.