What is Linear Regression?
Linear Regression

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Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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.
2.
FLASHCARD QUESTION
Front
What is the equation of a line in slope-intercept form?
Back
The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
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 for each unit change in the independent variable.
4.
FLASHCARD QUESTION
Front
What does the y-intercept in a linear regression equation represent?
Back
The y-intercept represents the value of the dependent variable when the independent variable is zero.
5.
FLASHCARD QUESTION
Front
How do you find the line of best fit?
Back
The line of best fit is found using methods such as least squares, which minimizes the sum of the squares of the vertical distances of the points from the line.
6.
FLASHCARD QUESTION
Front
What is the purpose of the line of best fit?
Back
The purpose of the line of best fit is to provide a predictive model that can be used to estimate values of the dependent variable based on the independent variable.
7.
FLASHCARD QUESTION
Front
What is a residual in linear regression?
Back
A residual is the difference between the observed value and the predicted value from the regression line.
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