Intro to Linear Regression (AFDA)
Flashcard
•
Mathematics
•
8th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Linear Regression?
Back
A statistical method used to model the relationship between a dependent variable and one or more independent variables.
2.
FLASHCARD QUESTION
Front
What does the correlation coefficient (r) indicate?
Back
It measures the strength and direction of a linear relationship between two variables, ranging from -1 to 1.
3.
FLASHCARD QUESTION
Front
What does a correlation coefficient of r = 0 indicate?
Back
No linear relationship between the variables.
4.
FLASHCARD QUESTION
Front
What does a positive correlation coefficient indicate?
Back
As one variable increases, the other variable also tends to increase.
5.
FLASHCARD QUESTION
Front
What does a negative correlation coefficient indicate?
Back
As one variable increases, the other variable tends to decrease.
6.
FLASHCARD QUESTION
Front
What is an outlier in a scatterplot?
Back
A data point that differs significantly from other observations, potentially indicating variability in the measurement or a different underlying process.
7.
FLASHCARD QUESTION
Front
How can you identify an outlier in a scatterplot?
Back
Look for points that are far away from the general cluster of data points.
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