Linear Regression
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Linear Regression?
Back
Linear Regression is 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 a one-unit change in the independent variable.
3.
FLASHCARD QUESTION
Front
What is the formula for the linear regression equation?
Back
Tags
CCSS.8.EE.B.5
4.
FLASHCARD QUESTION
Front
How do you calculate the mean of a set of numbers?
Back
To calculate the mean, sum all the numbers and divide by the count of numbers.
Tags
CCSS.6.SP.B.5C
5.
FLASHCARD QUESTION
Front
What is the correlation coefficient?
Back
The correlation coefficient (r) measures the strength and direction of a linear relationship between two variables, ranging from -1 to 1.
Tags
CCSS.HSS.ID.C.8
6.
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
7.
FLASHCARD QUESTION
Front
What does a strong positive correlation look like?
Back
A strong positive correlation (r close to 1) indicates that as one variable increases, the other variable also tends to increase.
Tags
CCSS.HSS.ID.B.5
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