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Correlation Project 2

Page history last edited by Sherri Brogdon 8 years, 8 months ago

  

 

Project Objective: Students will create a table, scatterplot, trend line, and equation for the correlation between personal technology use and math quiz scores.  They will also calculate the correlation coefficient.

 

 Resources and Explanations

 

All Turquoise Text below are Links to great resources. 

 

Click on the following links for documents you will need for this project.  

 

Correlation Rubric

 

Student Journal 

 

 


 

What is Regression Analysis?

 

Click HERE to learn more

1)  Explanation and Examples of Correlation

 

 

 

Positive Correlation Examples

 

Negative Correlation Examples

 

To practice drawing line of best fit:  Click HERE

Determine which variable is independent (x) and which variable is dependent (y)

 


 

 

Find the Equation of a trend line

 

 

Definitions and another example of writing equations for trend lines

 

 

Use the following website to calculate the correlation coefficient:  Pearson r. 

 

As a rule of thumb, the following guidelines on strength of relationship are often useful (though many experts would somewhat disagree on the choice of boundaries).

 

Value of r 

Strength of Relationship 

-1 to -0.5 or 0.5 to 1.0

Strong 

-0.5 to -0.3 or 0.3 to 0.5

Moderate 

-0.3 to -0.1 or 0.1 to 0.3

Weak 

-0.1 to 0.1 

None or very weak 

 

Correlation is only appropriate for examining the relationship between meaningful quantifiable data (e.g. air pressure, temperature) rather than categorical data such as gender, favorite color etc.

 from:  https://explorable.com/statistical-correlation

  

Example of Project

 

 

 

 

 

 

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