Regression Equations
Flashcard
•
Mathematics
•
11th - 12th Grade
•
Hard
+4
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a regression equation?
Back
A regression equation is a mathematical formula that describes the relationship between a dependent variable and one or more independent variables.
Tags
CCSS.8.SP.A.2
2.
FLASHCARD QUESTION
Front
What does the y-intercept represent in a regression equation?
Back
The y-intercept is the value of the dependent variable when all independent variables are equal to zero.
Tags
CCSS.HSF.LE.B.5
3.
FLASHCARD QUESTION
Front
What is the purpose of the correlation coefficient (r)?
Back
The correlation coefficient measures the strength and direction of a linear relationship between two variables.
Tags
CCSS.HSS.ID.C.8
4.
FLASHCARD QUESTION
Front
What does a correlation coefficient of r = 0 indicate?
Back
A correlation coefficient of r = 0 indicates no linear relationship between the two variables.
Tags
CCSS.HSS.ID.B.5
5.
FLASHCARD QUESTION
Front
What does a positive correlation coefficient indicate?
Back
A positive correlation coefficient indicates that as one variable increases, the other variable also tends to increase.
Tags
CCSS.HSS.ID.B.5
6.
FLASHCARD QUESTION
Front
What does a negative correlation coefficient indicate?
Back
A negative correlation coefficient indicates that as one variable increases, the other variable tends to decrease.
Tags
CCSS.HSS.ID.B.5
7.
FLASHCARD QUESTION
Front
What is the difference between linear and non-linear regression?
Back
Linear regression models a straight-line relationship, while non-linear regression models relationships that are curved or not straight.
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