Revision of Linear and Quadratic Regression

Quiz
•
Mathematics
•
9th - 12th Grade
•
Medium
+3
Standards-aligned
Margareta Roseen
Used 3+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main objective of simple linear regression?
To calculate the mean of the variables
To establish a linear relationship between variables for prediction.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In simple linear regression, what is the role of the independent variable?
The independent variable is irrelevant in simple linear regression
The role of the independent variable is to predict or explain the dependent variable.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the coefficient of determination (R-squared) represent in simple linear regression?
How well the model fits the data points. The closer to 1, the better.
Amount of error in the model predictions
Tags
CCSS.HSS.ID.B.6B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between correlation and regression in simple linear regression?
Correlation measures the strength and direction of a linear relationship, while regression estimates the equation of the line.
Correlation is always positive, while regression can be negative.
Tags
CCSS.HSS.ID.C.9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the y-intercept in simple linear regression?
The intercept is the slope of the regression line
The intercept represents the value of the dependent variable when all independent variables are zero.
Tags
CCSS.HSF.LE.B.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can outliers affect the results of simple linear regression?
Outliers have no impact on simple linear regression
Outliers can skew the line of best fit, affecting the overall accuracy and reliability of the regression model.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The turning point of the parabola is called the
vertex
solutions
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