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Case QQ: Scatterplots

Published: Sep 4th, 2013

View Lecture Slides with Transcript – Case QQ: Scatterplots Video (7:20) This document is linked from Scatterplots.

Outliers

Published: Jul 23rd, 2013

View Lecture Slides with Transcript – Outliers Video (2:30) This document is linked from Outliers.

Boxplots

Published: Jul 23rd, 2013

View Lecture Slides with Transcript – Boxplots Video (5:50) Video – Recorded Live (1:22) This short video elaborates upon the information displayed in a boxplot. The original slides are not […]

Describing Distributions

Published: Jul 23rd, 2013

View Lecture Slides with Transcript – Describing Distributions Video (3:58) Video – Recorded Live (3:40) This short video contains some additional discussion about shapes of distribution including symmetry and modality. […]

Describing Distributions

Published: Jun 28th, 2013

Features of Distributions of Quantitative Variables Shape (Symmetry/Skewness, Modality) Center Spread Outliers Let’s Summarize CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on these distinctions, […]

Interactive Applets – Linear Regression

Published: Dec 25th, 2012

Try these interactive demonstrations. To see the effect of outliers on a regression equation, use the applet introduced earlier. Draw points on the graph, add the regression line and then add […]

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 […]

Little Handbook – Outliers

Published: Dec 22nd, 2012

View the Reading on Outliers (≈ 1300 words) From the online version of Little Handbook of Statistical Practice, this reading contains a classic paper discussing how to handle outliers (wild observations).   This […]

Did I Get This – Identifying Outliers using IQR Method

Published: Dec 20th, 2012

    Hint   Hint         This document is linked from Outliers.

Scatterplots

Scatterplots

Published: Aug 21st, 2012

Creating Scatterplots Interpreting Scatterplots Direction Form Strength A Labeled (or Grouped) Scatterplot Let’s Summarize CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on these […]