Correlation Coefficient Practice
Flashcard
•
Mathematics
•
9th - 12th 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, ranging from -1 to 1.
2.
FLASHCARD QUESTION
Front
What does an r value of 1 indicate?
Back
An r value of 1 indicates a perfect positive correlation, meaning that as one variable increases, the other variable also increases in a perfectly linear manner.
3.
FLASHCARD QUESTION
Front
What does an r value of -1 indicate?
Back
An r value of -1 indicates a perfect negative correlation, meaning that as one variable increases, the other variable decreases in a perfectly linear manner.
4.
FLASHCARD QUESTION
Front
What does an r value of 0 indicate?
Back
An r value of 0 indicates no correlation between the two variables, meaning there is no predictable relationship.
5.
FLASHCARD QUESTION
Front
What is a positive correlation?
Back
A positive correlation occurs when two variables move in the same direction; as one variable increases, the other variable also increases.
6.
FLASHCARD QUESTION
Front
What is a negative correlation?
Back
A negative correlation occurs when two variables move in opposite directions; as one variable increases, the other variable decreases.
7.
FLASHCARD QUESTION
Front
What is a weak correlation?
Back
A weak correlation indicates that there is a slight relationship between two variables, but it is not strong enough to be considered significant.
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