Correlation Coefficient
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What does a correlation coefficient of r = 0.3 indicate about the relationship between two variables?
Back
It indicates a weak positive correlation.
2.
FLASHCARD QUESTION
Front
What does a correlation coefficient of r = 0.99 suggest about the relationship between two variables?
Back
It suggests a very strong positive correlation.
3.
FLASHCARD QUESTION
Front
What type of correlation is represented by a correlation coefficient of r = -0.95?
Back
It represents a strong negative correlation.
4.
FLASHCARD QUESTION
Front
How would you estimate the correlation coefficient from a scatterplot that shows a downward trend?
Back
You would estimate it to be a negative value, such as r = -0.9.
5.
FLASHCARD QUESTION
Front
What does a correlation coefficient of r = 0.32 indicate about the relationship between two variables?
Back
It indicates a weak positive correlation.
6.
FLASHCARD QUESTION
Front
What is the range of possible values for a correlation coefficient?
Back
The range is from -1 to +1.
7.
FLASHCARD QUESTION
Front
What does a correlation coefficient of r = 0 imply about the relationship between two variables?
Back
It implies no correlation between the variables.
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