Residuals & Correlation
Flashcard
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
Wayground Content
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14 questions
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1.
FLASHCARD QUESTION
Front
What is a residual?
Back
A residual is the vertical distance between a data point and a line of fit.
2.
FLASHCARD QUESTION
Front
How do you calculate a residual?
Back
Residual = Observed - Predicted
3.
FLASHCARD QUESTION
Front
What should a residual plot look like?
Back
A residual plot should appear random, with no distinct pattern.
4.
FLASHCARD QUESTION
Front
How many zero residuals are there in a given residual plot?
Back
1
5.
FLASHCARD QUESTION
Front
What does a strong positive correlation indicate?
Back
As one variable increases, the other variable also increases.
6.
FLASHCARD QUESTION
Front
What does a strong negative correlation indicate?
Back
As one variable increases, the other variable decreases.
7.
FLASHCARD QUESTION
Front
What is the correlation coefficient?
Back
A numerical measure of the strength and direction of a linear relationship between two variables.
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