Linear Regression Basics
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Objective
I can calculate the correlation coefficient to determine the strength of the relationship between two variables.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
9 questions
What is the range of values for the correlation coefficient, and what do these values indicate about the strength and direction of the relationship between two variables?
If the correlation coefficient (R) between two variables is 0.85, what type of correlation exists, and what does this imply about how changes in one variable affect the other?
Part 3 of 3
Exit ticket
Quick comprehension check
“Calculate the correlation coefficient for the following data points: (2, 3), (3, 5), (5, 7), (6, 8). What does your result indicate about the relationship between the two variables? Calculate the correlation coefficient for the following data points: (1, 1), (2, 4), (3, 2), (4, 3). What does your result indicate about the relationship between the two variables? ”
Sample answer included in the free materials
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