Residuals & Correlation

Flashcard
•
Mathematics
•
11th Grade
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What are residuals in the context of regression analysis?
Back
Residuals are the differences between the observed values and the predicted values from a regression model.
Tags
CCSS.HSS.ID.B.6B
2.
FLASHCARD QUESTION
Front
How do you calculate a residual?
Back
Residual = Observed value - Predicted value.
Tags
CCSS.HSS.ID.B.6B
3.
FLASHCARD QUESTION
Front
What does a negative residual indicate?
Back
A negative residual indicates that the predicted value is too big.
Tags
CCSS.HSS.ID.B.6B
4.
FLASHCARD QUESTION
Front
What does a positive residual indicate?
Back
A positive residual indicates that the predicted value is too small.
Tags
CCSS.HSS.ID.B.6B
5.
FLASHCARD QUESTION
Front
What is the purpose of analyzing residuals in regression?
Back
Analyzing residuals helps to assess the fit of the model and identify any patterns that suggest the model is inappropriate.
Tags
CCSS.HSS.ID.B.6B
6.
FLASHCARD QUESTION
Front
What does a residual plot show?
Back
A residual plot shows the residuals on the vertical axis and the independent variable on the horizontal axis, helping to visualize the fit of the model.
Tags
CCSS.HSS.ID.B.6B
7.
FLASHCARD QUESTION
Front
What indicates a good linear fit in a residual plot?
Back
A good linear fit is indicated by residuals that are randomly scattered around zero without any discernible pattern.
Tags
CCSS.HSS.ID.B.6B
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