What is Linear Regression?
Linear Regression

Flashcard
•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
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 the correlation coefficient (r) indicate?
Back
The strength and direction of a linear relationship between two variables, ranging from -1 to 1.
3.
FLASHCARD QUESTION
Front
What does r = -0.89 indicate?
Back
A strong negative correlation between the two variables.
4.
FLASHCARD QUESTION
Front
What does r = 0.3 indicate?
Back
A weak positive correlation between the two variables.
5.
FLASHCARD QUESTION
Front
What is a scatter plot?
Back
A graphical representation of two variables' values, showing the relationship between them.
6.
FLASHCARD QUESTION
Front
What is a trend line?
Back
A line that best represents the data points in a scatter plot, used for making predictions.
7.
FLASHCARD QUESTION
Front
How do you interpret a positive correlation?
Back
As one variable increases, the other variable also tends to increase.
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