AP Statisticsmediummcq1 pt
If r-squared = 0.81, then r could be
A.-0.9 or 0.9
B.0.81
C.0.41
D.1.62
Explanation
Core Concept
r is the signed square root of 0.81.
Correct Answer
A-0.9 or 0.9
More Unit 2: Exploring Two-Variable Data practice questions
- easyA regression line is used to predict y from x. If the data ranges from x = 10 to x = 50, predicting at x = 200 is
- mediumFor a regression line, the interpretation of the slope is
- mediumA lurking variable is
- easyWhich statement about correlation and causation is correct?
- mediumIn a two-way table, the joint distribution shows
Practice more AP Statistics questions with full explanations
Practice Unit 2: Exploring Two-Variable Data Questions →