The slope of a regression line (y on x) is -0.24, we know that SDy=3.2 and SDx=4.0, then the correlation coefficient between the two variables is: A. 0.3 B. -0.3 C. 0.8 D. -0.8
The slope of a regression line (y on x) is -0.24, we know that SDy=3.2 and SDx=4.0, then the correlation coefficient between the two variables is: A. 0.3 B. -0.3 C. 0.8 D. -0.8
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 4PPS
Related questions
Question
The slope of a regression line (y on x) is -0.24, we know that SDy=3.2 and
SDx=4.0, then the
A. 0.3
B. -0.3
C. 0.8
D. -0.8
Expert Solution
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Step 1
The regression line on is as follows.
is the slope of the regression line.
is the intercept.
The formula for the slope is as follows.
is the correlation coefficient.
The slope of the regression line is -0.24
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