Regression Review
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the linear regression equation?
Back
A linear regression equation is a mathematical representation of the relationship between two variables, typically in the form y = mx + b, where m is the slope and b is the y-intercept.
Tags
CCSS.8.EE.B.5
2.
FLASHCARD QUESTION
Front
How do you predict values using a linear regression equation?
Back
To predict values, substitute the independent variable (x) into the linear regression equation and solve for the dependent variable (y).
Tags
CCSS.8.EE.B.5
3.
FLASHCARD QUESTION
Front
What does the slope in a linear regression equation represent?
Back
The slope represents the rate of change of the dependent variable (y) for each unit change in the independent variable (x).
Tags
CCSS.8.EE.B.5
4.
FLASHCARD QUESTION
Front
What is the y-intercept in a linear regression equation?
Back
The y-intercept is the value of y when x is 0, indicating where the line crosses the y-axis.
Tags
CCSS.HSF.LE.B.5
5.
FLASHCARD QUESTION
Front
What is a correlation coefficient?
Back
A correlation coefficient is a statistical measure that describes the strength and direction of a 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 -0.75 indicate?
Back
A correlation coefficient of -0.75 indicates a strong negative correlation, meaning 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 exponential regression?
Back
Linear regression models a straight-line relationship, while exponential regression models a relationship where the rate of change increases or decreases exponentially.
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