Content Tagged Correlation Subscribe to RSS Feed

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 […]