Which of the following statements about the correlation coefficient is true?

A.
The correlation coefficient and the slope of the regression line may have opposite signs.
B.
A correlation of 1 indicates a perfect cause-and-effect relationship between the variables.
C.
Correlations of +0.87 and -0.87 indicate the same degree of clustering around the regression line.
D.
Correlation applies equally well to quantitative and categorical data.
E.
A correlation of 0 shows little or no association between two variables.
Statistics
AP
College Board
Exam No:AP Statistics Problem Set 5 Year:2024 Question No:7

Answer:

C

Knowledge points:

2.5 Correlation
2.6 Linear Regression Models

Solution:

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