5/21 Line of Best Fit and Linear Regression
Flashcard
•
Mathematics
•
8th - 9th 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 line of best fit?
Back
The line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data points.
Tags
CCSS.8.EE.B.5
2.
FLASHCARD QUESTION
Front
How do you determine the slope of a line of best fit?
Back
The slope of a line of best fit is determined by calculating the change in the y-values divided by the change in the x-values between two points on the line.
Tags
CCSS.8.EE.B.5
3.
FLASHCARD QUESTION
Front
What does the slope of 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 zero; it represents the starting point of the line on the y-axis.
Tags
CCSS.HSF.LE.B.5
5.
FLASHCARD QUESTION
Front
How can you use a line of best fit to make predictions?
Back
You can use the line of best fit to predict the value of the dependent variable (y) for a given value of the independent variable (x) by substituting x into the equation of the line.
6.
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
7.
FLASHCARD QUESTION
Front
What does a positive slope indicate in a linear regression model?
Back
A positive slope indicates that as the independent variable increases, the dependent variable also increases.
Tags
CCSS.HSF.LE.B.5
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