linear regression

Flashcard
•
Mathematics
•
9th Grade
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is linear regression?
Back
A statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.
Tags
CCSS.8.SP.A.2
2.
FLASHCARD QUESTION
Front
What does the slope in a linear regression equation represent?
Back
The slope indicates the change in the dependent variable for each one-unit change in the independent variable.
3.
FLASHCARD QUESTION
Front
What is the equation of a linear regression line?
Back
y = mx + b, where m is the slope and b is the y-intercept.
Tags
CCSS.HSF.LE.B.5
4.
FLASHCARD QUESTION
Front
What does a positive correlation indicate in a scatter plot?
Back
As one variable increases, the other variable also tends to increase.
Tags
CCSS.HSS.ID.B.5
5.
FLASHCARD QUESTION
Front
What does a negative correlation indicate in a scatter plot?
Back
As one variable increases, the other variable tends to decrease.
Tags
CCSS.HSS.ID.B.5
6.
FLASHCARD QUESTION
Front
What does it mean if a scatter plot shows no relationship?
Back
There is no discernible pattern or correlation between the two variables.
Tags
CCSS.HSS.ID.B.5
7.
FLASHCARD QUESTION
Front
How do you interpret the y-intercept in a linear regression equation?
Back
The y-intercept is the value of the dependent variable when the independent variable is zero.
Tags
CCSS.HSF.LE.B.5
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