Linear Regression
Flashcard
•
Mathematics
•
University
•
Practice Problem
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What letter do we use to represent the correlation coefficient in linear regression?
Back
r
Tags
CCSS.HSS.ID.C.8
2.
FLASHCARD QUESTION
Front
What is the equation of the line of best fit for the given data: y = 4.19x - 163.41?
Back
The equation of the line of best fit is y = 4.19x - 163.41.
3.
FLASHCARD QUESTION
Front
Using linear regression, how do you find the equation of best fit for starting salaries of health care workers?
Back
The equation of best fit is y = 839.721x + 27541.812.
4.
FLASHCARD QUESTION
Front
In a scatter plot showing the relationship between chapters and pages, how can you predict the number of chapters in a book with 180 pages?
Back
You can use the trend line to predict that a book with 180 pages would have 18 chapters.
5.
FLASHCARD QUESTION
Front
What is the general form of a linear regression equation?
Back
The general form is y = mx + b, where m is the slope and b is the y-intercept.
Tags
CCSS.8.EE.B.5
6.
FLASHCARD QUESTION
Front
What does the slope (m) in a linear regression equation represent?
Back
The slope represents the rate of change of the dependent variable (y) with respect to the independent variable (x).
Tags
CCSS.8.EE.B.5
7.
FLASHCARD QUESTION
Front
What does the y-intercept (b) in a linear regression equation indicate?
Back
The y-intercept indicates the value of y when x is 0.
Tags
CCSS.HSF.LE.B.5
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