

Linear Regression Concepts and Applications
Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of linear regression?
To find the average of two variables
To predict the relationship between two numerical variables
To calculate the median of a data set
To determine the mode of a data set
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a perfect linear relationship, what does knowing the value of x allow you to do?
Estimate the value of y
Determine the median of y
Find the range of y
Calculate the mode of y
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do beta_0 and beta_1 represent in the line equation y = beta_0 + beta_1 * x?
Variance and standard deviation
Mode and range
Intercept and slope
Mean and median
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'possum' data set help illustrate?
The habitat preferences of possums
The color variations in possums
The average weight of possums
The relationship between head length and total length of possums
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'hat' on y signify in the equation y-hat = 41 + 0.59x?
It is a median
It is a mode
It is an estimate
It is an exact value
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are residuals in the context of linear regression?
The sum of all data points
The leftover variation after model fit
The mode of the data
The average of the data
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the goal of choosing a linear model in regression?
To maximize the residuals
To minimize the residuals
To find the median of the data
To calculate the mode of the data
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