Correlation Coefficient Review
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the correlation coefficient (r)?
Back
The correlation coefficient (r) is a statistical measure that describes the strength and direction of a relationship between two variables. It ranges from -1 to 1.
2.
FLASHCARD QUESTION
Front
What does an r-value of 0.99 indicate?
Back
An r-value of 0.99 indicates a very strong positive correlation between the two variables.
3.
FLASHCARD QUESTION
Front
What does an r-value of -0.90 indicate?
Back
An r-value of -0.90 indicates a strong negative correlation between the two variables.
4.
FLASHCARD QUESTION
Front
What does an r-value of 0.09 indicate?
Back
An r-value of 0.09 indicates a very weak positive correlation between the two variables.
5.
FLASHCARD QUESTION
Front
What does an r-value of -0.099 indicate?
Back
An r-value of -0.099 indicates a very weak negative correlation between the two variables.
6.
FLASHCARD QUESTION
Front
What is a positive correlation?
Back
A positive correlation means that as one variable increases, the other variable also tends to increase.
7.
FLASHCARD QUESTION
Front
What is a negative correlation?
Back
A negative correlation means that as one variable increases, the other variable tends to decrease.
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