Exploring Linear Regression and Best Fit Lines
Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
Lucas Foster
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary goal of linear regression?
To identify outliers in a dataset
To calculate the median of a dataset
To determine the relationship between two variables
To find the average of two variables
Tags
CCSS.8.EE.B.5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When drawing a line of best fit, what is a general guideline to follow?
Ensure there are as many data points above the line as below it
Ensure all data points are below the line
Ensure all data points are above the line
Ensure the line passes through the origin
Tags
CCSS.8.EE.B.5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you determine the equation of a best fit line manually?
By averaging the x and y values
By using the median of the data points
By selecting two points on the line and calculating the slope and intercept
By using the mean of the data points
Tags
CCSS.8.EE.B.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a calculator for linear regression?
To calculate the median of the data points
To identify outliers in the data
To determine the exact best fit line using sophisticated techniques
To find the average of the data points
Tags
CCSS.HSS.ID.B.5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the linear correlation coefficient (R value) indicate?
The strength and direction of the linear relationship between two variables
The number of data points
The median of the data points
The average of the data points
Tags
CCSS.HSF.LE.B.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is interpolation?
Identifying outliers in the data
Using a model to predict values outside the range of observed data
Using a model to predict values within the range of observed data
Calculating the average of the data points
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is extrapolation considered more dangerous than interpolation?
It always provides accurate predictions
It involves predicting values outside the range of observed data
It is easier to perform than interpolation
It involves predicting values within the range of observed data
Tags
CCSS.8.EE.C.8C
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