Residuals & Correlation

Flashcard
•
Mathematics
•
11th Grade
•
Hard
+6
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a residual in statistics?
Back
A residual is the difference between the observed value and the predicted value of a data point in a regression analysis.
Tags
CCSS.HSS.ID.B.6B
2.
FLASHCARD QUESTION
Front
How do you interpret a positive residual?
Back
A positive residual indicates that the observed value is greater than the predicted value, suggesting that the model underestimates the actual data point.
Tags
CCSS.HSS.ID.B.6B
3.
FLASHCARD QUESTION
Front
How do you interpret a negative residual?
Back
A negative residual indicates that the observed value is less than the predicted value, suggesting that the model overestimates the actual data point.
Tags
CCSS.HSS.ID.B.6B
4.
FLASHCARD QUESTION
Front
What does a residual plot show?
Back
A residual plot displays the residuals on the vertical axis and the independent variable on the horizontal axis, helping to assess the fit of a regression model.
Tags
CCSS.HSS.ID.B.6B
5.
FLASHCARD QUESTION
Front
What does it mean if a residual plot shows no pattern?
Back
If a residual plot shows no pattern, it suggests that the regression model is appropriate for the data.
Tags
CCSS.HSS.ID.B.6B
6.
FLASHCARD QUESTION
Front
What does a positive correlation indicate?
Back
A positive correlation indicates that as one variable increases, the other variable also tends to increase.
Tags
CCSS.HSS.ID.B.5
7.
FLASHCARD QUESTION
Front
What does a negative correlation indicate?
Back
A negative correlation indicates that as one variable increases, the other variable tends to decrease.
Tags
CCSS.HSS.ID.B.5
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