Linear Regression and Correlation
Flashcard
•
Mathematics
•
10th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is linear regression?
Back
Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.
2.
FLASHCARD QUESTION
Front
What does correlation measure?
Back
Correlation measures the strength and direction of a linear relationship between two variables.
3.
FLASHCARD QUESTION
Front
What is a positive correlation?
Back
A positive correlation indicates that as one variable increases, the other variable also tends to increase.
4.
FLASHCARD QUESTION
Front
What is a negative correlation?
Back
A negative correlation indicates that as one variable increases, the other variable tends to decrease.
5.
FLASHCARD QUESTION
Front
What is the correlation coefficient (r)?
Back
The correlation coefficient (r) is a numerical measure of the strength and direction of a linear relationship between two variables, ranging from -1 to 1.
6.
FLASHCARD QUESTION
Front
What does an r value of 0 indicate?
Back
An r value of 0 indicates no correlation between the two variables.
7.
FLASHCARD QUESTION
Front
What does an r value of 1 indicate?
Back
An r value of 1 indicates a perfect positive correlation between the two variables.
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