Residuals & Correlation

Flashcard
•
Mathematics
•
11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a residual?
Back
The difference between the observed value and the predicted value in a regression analysis.
2.
FLASHCARD QUESTION
Front
How do you calculate a residual?
Back
Observed - Predicted
3.
FLASHCARD QUESTION
Front
What does a good residual plot indicate?
Back
It indicates that the model fits the data well.
4.
FLASHCARD QUESTION
Front
What should a residual plot look like if the model is appropriate?
Back
Random scatter without distinct patterns.
5.
FLASHCARD QUESTION
Front
What does a distinct pattern in a residual plot suggest?
Back
It suggests that the model may not be appropriate for the data.
6.
FLASHCARD QUESTION
Front
What is the purpose of analyzing residuals?
Back
To assess the fit of a regression model.
7.
FLASHCARD QUESTION
Front
What does a positive residual indicate?
Back
The observed value is greater than the predicted value.
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