text: # Content Tagged “Correlation”
  
  A measure of the relationship between two quantitative measures. The most common measure of correlation is Pearson’s correlation coefficient (r) which measures strength and direction of the linear relationship between two quantitative variables.
  
  ## Case Q-Q: Linear Relationships – Correlation
  
  Published: Sep 4th, 2013
  
  View Lecture Slides with Transcript Video (8:37) This document is linked from Linear Relationships – Correlation.
  
  ## Case QQ: Scatterplots
  
  Published: Sep 4th, 2013
  
  View Lecture Slides with Transcript – Case QQ: Scatterplots Video (7:20) This document is linked from Scatterplots.
  
  ## Case Q-Q: Introduction
  
  Published: Sep 4th, 2013
  
  View Lecture Slides with Transcript – Case Q-Q: Introduction Video (2:30) This document is linked from Case Q-Q.
  
  ## Little Handbook – Correlation Coefficients
  
  Published: Dec 26th, 2012
  
  View the Reading (≈ 2700 words) From the online version of Little Handbook of Statistical Practice, this reading contains a detailed discussion of correlation. This document is linked from Linear Relationships – Correlation.
  
  ## Learn By Doing – Correlation and Outliers (Software)
  
  Published: Dec 24th, 2012
  
  Use the solutions provided and complete the questions for practice with Case Q-Q. Optional: Create your own solutions using your software for extra practice. Objectives: Observe how an outlier can […]
  
  ## Interactive Applet – Correlation and Outliers
  
  Published: Dec 24th, 2012
  
  To see how an outlier affects the correlation, use this applet to complete the tasks below. Interactive Applet: Correlation and Outliers Fill the scatterplot with a hypothetical positive linear relationship between X and […]
  
  ## Did I Get This – Correlation Coefficient
  
  Published: Dec 24th, 2012
  
  Hint This document is linked from Linear Relationships – Correlation.
  
  ## Interactive Applets – Correlation
  
  Published: Dec 24th, 2012
  
  In order to get a better sense for how the value of r relates to the strength of the linear relationship, take a look at this applet from the Rosman/Chance collection which asks you to guess […]
  
  ## Learn By Doing – Strength of Correlation
  
  Published: Dec 24th, 2012
  
  This document is linked from Linear Relationships – Correlation.
  
  ## Interactive Applet – Case Q-Q
  
  Published: Dec 24th, 2012
  
  This interactive online data analysis applet is part of the online content for Introduction to the Practice of Statistics, 8th Edition (Moore and McCabe). Choose one of the datasets in the list and click […]
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